drm/amdgpu: Initialize and update SDMA power gating

Init SDMA HW base configuration and enable idle INT for rn.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1206,6 +1206,7 @@ static void sdma_v4_0_init_pg(struct amdgpu_device *adev)
 
 	switch (adev->asic_type) {
 	case CHIP_RAVEN:
+	case CHIP_RENOIR:
 		sdma_v4_1_init_power_gating(adev);
 		sdma_v4_1_update_power_gating(adev, true);
 		break;