Adding reimage flag to skip/do reiamge as part of install/provision in bringup_test_setup task.

Change-Id: Iefd5a254f800202f6530ebe6c88de9364629fd5b
Merge "Adding reimage flag to skip/do reiamge as part of install/provision in bringup_test_setup task."
Merge remote-tracking branch 'upstream/master'