Added a keyword to delete all BMC dump via Redfish
Added a keyword to delete all BMC dump via Redfish

Change-Id: Ia24dfa732279f4a91761eb112d67e421bf920b8a
Signed-off-by: Rahul Maheshwari <a806e6fd77e56dd64ff6084a06bbf3a5a70392ef@in.ibm.com>

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