Added test to verify error while uploading same CA certificate
Added test to verify error while uploading same CA certificate

Change-Id: I61d46f52a8e5345fc6321c407a6bff2c65b73bdd
Signed-off-by: Rahul Maheshwari <a806e6fd77e56dd64ff6084a06bbf3a5a70392ef@in.ibm.com>

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