Add initial code for IPMI SoftPowerOff functionality

This commit puts a skeleton layout for the IPMI Soft Power Off
functionality.

Change-Id: I7c3ededc9d4038e172d7f6230270ecfe397330e9
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
6 files changed