Handle CPU Module and FRU in write VPD

Test-
1. Using vpd-tool
 ./vpd-tool --readKeyword   --object  /system/chassis/motherboard --record VINI --keyword SN
{
    "/system/chassis/motherboard": {
        "SN": "YL2E2D010000"
    }
}
 ./vpd-tool --writeKeyword    --object  /system/chassis/motherboard --record VINI --keyword SN --value 0x303030

 ./vpd-tool --readKeyword   --object  /system/chassis/motherboard --record VINI --keyword SN           {
    "/system/chassis/motherboard": {
        "SN": "000E2D010000"
    }
}

COM interface-

Change-Id: I39ee0448483be581da254f5633b0817637292dff
-------------
.SN                                                  property  ay        12 48 48 48 69 50 68 48 49 48 48 48 48   emits-change writable

Common Interface-
----------------
xyz.openbmc_project.Inventory.Decorator.Asset        interface -         -                                        -
.SerialNumber                                        property  s         "000E2D010000"                           emits-change writable

sys path updated-
--------
00000110  35 53 4e 0c 30 30 30 45  32 44 30 31 30 30 30 30  |5SN.000E2D010000|

2. Tested on simics with spi driver supported image for 1 DCM
verified CPUs and other FRUs to work as expected.

1- busctl call WriteKeyword ossay  "/system/chassis/motherboard/cpu0" "VINI" "DR" 1 65
Updating CI, so updated cpu0, cpu1 and spi2 vpd.

2- busctl call WriteKeyword ossay  "/system/chassis/motherboard/cpu1" "VINI" "DR" 1 66
Updating CI, so updated cpu0, cpu1 and spi2 vpd.

3- busctl call WriteKeyword ossay  "/system/chassis/motherboard/cpu0" "VINI" "CC" 1 67
Not a CI, so only cpu0 and spi2 vpd updated.

4- busctl call WriteKeyword ossay  "/system/chassis/motherboard/cpu1" "VINI" "CC" 1 67
Not a CI, so only cpu1 and spi6 vpd updated.

cpu1 updated 1 Byte data of DR (7)-
busctl call WriteKeyword ossay "/system/chassis/motherboard/cpu1" "VINI" "DR" 1 55

Read file info at spi2.0/spi2.00/nvmem offset 0x30000-
000001a0  04 56 49 4e 49 44 52 10  37 20 57 41 59 20 20 50  |.VINIDR.7 WAY  P|  <--DR updated 1 Byte

Change-Id: I5e99c1ac4e09b2d0e05be18a10d1d50eba22fea2
Signed-off-by: Alpana Kumari <alpankum@in.ibm.com>
diff --git a/types.hpp b/types.hpp
index 5ff2959..c23ddb2 100644
--- a/types.hpp
+++ b/types.hpp
@@ -34,8 +34,7 @@
 
 using VPDfilepath = std::string;
 using FruIsMotherboard = bool;
-using FrusMap =
-    std::unordered_map<Path, std::pair<VPDfilepath, FruIsMotherboard>>;
+using FrusMap = std::multimap<Path, std::pair<VPDfilepath, FruIsMotherboard>>;
 using LocationCode = std::string;
 using LocationCodeMap = std::unordered_multimap<LocationCode, Path>;
 using ListOfPaths = std::vector<sdbusplus::message::object_path>;