Added a check to make sure that REST server is up and running after IP and MAC configuration
Added a check to make sure that REST server is up and running after IP and MAC configuration

Resolves openbmc/openbmc-test-automation#83

Change-Id: I494ebc5fccdd2dd7b57f239ac7d93e3c83b23004
Signed-off-by: Rahul Maheshwari <a806e6fd77e56dd64ff6084a06bbf3a5a70392ef@in.ibm.com>

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