platform-mc: discovery FRU data from terminus

As [1], `pldmd` will host Fru D-Bus inventory object path and Fru
`xyz.openbmc_project.Inventory.Decorator.*` D-Bus interfaces of one PLDM
terminus.
[1] https://github.com/openbmc/docs/blob/master/designs/pldm-stack.md#processing-pldm-fru-information-sent-down-by-the-host-firmware

Support getting FRU data from terminus in the terminus discovery phase
and expose FRU data to the Fru D-Bus properties in
`xyz.openbmc_project.Inventory.Decorator.Asset`,
`xyz.openbmc_project.Inventory.Decorator.AssetTag`,
`xyz.openbmc_project.Inventory.Decorator.Compatible` and
`xyz.openbmc_project.Inventory.Decorator.Revision` interfaces of
`xyz/openbmc_project/FruPldm/<Terminus_Name>` D-Bus object path which is
created by `xyz.openbmc_project.PLDM` D-Bus service. The object path
will be available until the endpoint EID is removed from the MCTP
D-Bus.

```
busctl introspect xyz.openbmc_project.PLDM  /xyz/openbmc_project/inventory/system/board/S0
NAME                                               TYPE      SIGNATURE RESULT/VALUE                       FLAGS
org.freedesktop.DBus.Introspectable                interface -         -                                  -
.Introspect                                        method    -         s                                  -
org.freedesktop.DBus.Peer                          interface -         -                                  -
.GetMachineId                                      method    -         s                                  -
.Ping                                              method    -         -                                  -
org.freedesktop.DBus.Properties                    interface -         -                                  -
.Get                                               method    ss        v                                  -
.GetAll                                            method    s         a{sv}                              -
.Set                                               method    ssv       -                                  -
.PropertiesChanged                                 signal    sa{sv}as  -                                  -
xyz.openbmc_project.Inventory.Decorator.Asset      interface -         -                                  -
.BuildDate                                         property  s         ""                                 emits-change writable
.Manufacturer                                      property  s         ""                                 emits-change writable
.Model                                             property  s         "00014003"                         emits-change writable
.PartNumber                                        property  s         ""                                 emits-change writable
.SerialNumber                                      property  s         "000000218"                        emits-change writable
.SparePartNumber                                   property  s         ""                                 emits-change writable
.SubModel                                          property  s         ""                                 emits-change writable
xyz.openbmc_project.Inventory.Decorator.AssetTag   interface -         -                                  -
.AssetTag                                          property  s         ""                                 emits-change writable
xyz.openbmc_project.Inventory.Decorator.Compatible interface -         -                                  -
.Names                                             property  as        0                                  emits-change writable
xyz.openbmc_project.Inventory.Decorator.Revision   interface -         -                                  -
.Version                                           property  s         "x.x.00008.004"                    emits-change writable
xyz.openbmc_project.Inventory.Item.Board           interface -         -                                  -

```
Signed-off-by: Dung Cao <dung@os.amperecomputing.com>
Signed-off-by: Thu Nguyen <thu@os.amperecomputing.com>
Change-Id: I4f8869f8fee0fc0f8a5a5670d9a42fc7f48cc798
diff --git a/platform-mc/terminus.hpp b/platform-mc/terminus.hpp
index e818d32..10a8f55 100644
--- a/platform-mc/terminus.hpp
+++ b/platform-mc/terminus.hpp
@@ -1,15 +1,16 @@
 #pragma once
 
+#include "libpldm/fru.h"
 #include "libpldm/platform.h"
 
 #include "common/types.hpp"
+#include "dbus_impl_fru.hpp"
 #include "numeric_sensor.hpp"
 #include "requester/handler.hpp"
 #include "terminus.hpp"
 
 #include <sdbusplus/server/object.hpp>
 #include <sdeventplus/event.hpp>
-#include <xyz/openbmc_project/Inventory/Item/Board/server.hpp>
 
 #include <algorithm>
 #include <bitset>
@@ -34,8 +35,6 @@
 using SensorAuxiliaryNames = std::tuple<
     SensorId, SensorCnt,
     std::vector<std::vector<std::pair<NameLanguageTag, SensorName>>>>;
-using InventoryItemBoardIntf = sdbusplus::server::object_t<
-    sdbusplus::xyz::openbmc_project::Inventory::Item::server::Board>;
 
 /** @struct EntityKey
  *
@@ -149,6 +148,13 @@
         return terminusName;
     }
 
+    /** @brief Parse record data from FRU table
+     *
+     *  @param[in] fruData - pointer to FRU record table
+     *  @param[in] fruLen - FRU table length
+     */
+    void updateInventoryWithFru(const uint8_t* fruData, const size_t fruLen);
+
     /** @brief A list of PDRs fetched from Terminus */
     std::vector<std::vector<uint8_t>> pdrs{};
 
@@ -298,8 +304,9 @@
 
     /** @brief Terminus name */
     EntityName terminusName{};
-    /* @brief The pointer of iventory D-Bus interface for the terminus */
-    std::unique_ptr<InventoryItemBoardIntf> inventoryItemBoardInft = nullptr;
+    /* @brief The pointer of inventory D-Bus interface for the terminus */
+    std::unique_ptr<pldm::dbus_api::PldmEntityReq> inventoryItemBoardInft =
+        nullptr;
 
     /* @brief Inventory D-Bus object path of the terminus */
     std::string inventoryPath;