tree abfca7cd20bb2485964a72fcd02556eb0c71c573
parent da36455b32ad183bfab64a948310fc2f7cae07ab
author Brandon Wyman <bjwyman@gmail.com> 1585235645 -0500
committer Brandon Wyman <bjwyman@gmail.com> 1593565441 -0500

psu-ng: Updates to get VPD data to inventory

Add in code to retrieve the VPD data and populate that data to the D-Bus
inventory properties.

Use the PMBus utilities to retrieve the model (CCIN for IBM power
supplies), part number, serial number, and firmware version information
from the sysfs "files" provided via the device driver.

Only build in IBM VPD data collection and reporting if meson ran with
-Dibm-vpd=true.

Tested:
    Copied SDK build of phospor-psu-monitor with -Dibm-vpd=true to
    Rainier hardware system, verified inventory properties updated/added.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Change-Id: I61688b154ead570e9d9390342596bf7d840f4dce