Bump up redfish image upload timedout
Bump up redfish image upload timedout

This is to add more time for cases where network or responses are
slower than expected and improved update success rate

Change-Id: Ie27ad26af40d5b4be69e6e9c21271e91f8f8db64
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

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