tree 52513602ea751d35cab31fed0acfdc928d0b0114
parent 5cf320c39ff4ca7b75e636a56a8f559506f2ca7a
author Zhikui Ren <zhikui.ren@intel.com> 1639006851 -0800
committer Zhikui Ren <zhikui.ren@intel.com> 1645039567 -0800

Add pfr postcode feature

Add PfrPostcode object to read platformState mailbox register.
Add dbus object to PFR manager service so current platform state
value can be read by interested application like Redfish.
PfrPostcode object is added only when system is pfr provisioned.

Tested:
Manually verified dbus object properties as below -

busctl introspect xyz.openbmc_project.PFR.Manager /xyz/openbmc_project/pfr
NAME                                    TYPE      SIGNATURE  RESULT/VALUE  FLAGS
xyz.openbmc_project.State.Boot.Platform interface -          -                  -
.Data                                   property  y          14                 emits-change writable
.PlatformState                          property  s          "T0 boot complete" emits-change

Signed-off-by: Zhikui Ren <zhikui.ren@intel.com>
Change-Id: I3f3581af23c2656523ee975b2aab9ba15078c934