Added security test automation fix for github issue 2144
Added security test automation fix for github issue 2144

    -Added logout of redfish session required for without auth token test scenarios.

Change-Id: Iaead1d40f7adb5a68e90244e9b334b55cd7a8f5a
Signed-off-by: shrsuman123 <718c928890966c92717ef8b27bd5d130d59afcdb@in.ibm.com>

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