Instead of EFI_ACCESS_DENIED which is not defined in retval by
UEFI spec, return UNSUPPORTED if device has been locked in
SetTheImage().
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>