Add support to code update same image on current and alternate side
Add support to code update same image on current and alternate side

Changes:
    - Add new test case to perform code update.

Future commit will need few more checks on version.

Change-Id: Iada7030baf7dd48e396dbb89892f590d17768962
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

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