Fix FFDC default path
Fix FFDC default path

Resolves  openbmc/openbmc-test-automation#719

Change-Id: I2182bcb480e80922fedcdda672fe08793c3f9f30
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

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