[Why]
GPINT commands have the lowest priority in DMCUB, so it's possible
that the command isn't processed in time.

[How]
Add a log to help identify this case.
Reviewed-by: NKoo Anthony <Anthony.Koo@amd.com>
Acked-by: NSolomon Chiu <solomon.chiu@amd.com>
Signed-off-by: NWyatt Wood <wyatt.wood@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>