Implement sending POST start/end command to BMC.
TEST=Read POST command log in OpenBMC,
if command received successfully, message may show as below,
root@bmc-oob:~# cat /var/log/messages |grep -i "POST"
2020 May 28 13:21:22 bmc-oob. user.info fby3-v2020.20.2:
ipmid: POST Start Event for Payload#1
2020 May 28 13:21:25 bmc-oob. user.info fby3-v2020.20.2:
ipmid: POST End Event for Payload#1
root@bmc-oob:~#
Signed-off-by: TimChu <Tim.Chu@quantatw.com>
Change-Id: I38b512ee97c0eda6ba54482a448ef9ffc27b4ddb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41993
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
a5ca4a0c75