drm/amdgpu/sdma4: set sdma clock gating for rn

Add support for SDMA clockgating on RN.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

@@ -2181,6 +2181,7 @@ static int sdma_v4_0_set_clockgating_state(void *handle,
 	case CHIP_VEGA20:
 	case CHIP_RAVEN:
 	case CHIP_ARCTURUS:
+	case CHIP_RENOIR:
 		sdma_v4_0_update_medium_grain_clock_gating(adev,
 				state == AMD_CG_STATE_GATE ? true : false);
 		sdma_v4_0_update_medium_grain_light_sleep(adev,