IPMI auxiliary revision verification

Added:
     - Function to get the aux version from BMC version.
     - IPMI auxiliary version and derived aux version from BMC.

Resolves  openbmc/openbmc-test-automation#1297

Change-Id: I820941e16e8e8d6ae37f9b3dd97abfbc7823a1a4
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
2 files changed