fapi2 doxygen warning/error cleanup from ecmd repository
fapi2 doxygen warning/error cleanup from ecmd repository

Change-Id: I8d3383303334110184303842d1e484f36dfe433a
Original-Change-Id: I502a6f79f461632588b46e51d5892e2d6b74942d
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/20985
Tested-by: Jenkins Server
Reviewed-by: Matt K. Light <19ba8ed73a0b3c376c81fced381f1ac0f483b7c2@us.ibm.com>
Reviewed-by: Brian Silver <af0eed78d989d9597decc8b92fa6db01ef8b58e0@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <ab93eca12e43608f33daa16a67357cd7b7e867ab@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot