[Why & How]
Disable root clock for dpp when not being used.
Reviewed-by: NEric Yang <eric.yang2@amd.com>
Acked-by: NAgustin Gutierrez Sanchez <agustin.gutierrez@amd.com>
Signed-off-by: NJake Wang <haonan.wang2@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>