Fix BMC version string comparision
Fix BMC version string comparision

Change-Id: I90224214d283da32ea5783cf6cd3544c1c5c3a6a
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation