Update robot FFDC CLI command
Update robot FFDC CLI command

JSON files no longer available under /var/lib/bmcweb/

Change-Id: Iec380f004e6e38fc0803f5f1f3fe1c8d85a39d9b
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

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