amdgpu/vcn: enable AMD_PG_SUPPORT_VCN

turn on AMD_PG_SUPPORT_VCN flag for power saving
Signed-off-by: David (Ming Qiang) Wu <David.Wu3@amd.com>
Reviewed-by: Sonny Jiang <sonny.jiang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/soc24.c

@@ -359,7 +359,7 @@ static int soc24_common_early_init(void *handle)
 		break;
 	case IP_VERSION(12, 0, 1):
 		adev->cg_flags = 0;
-		adev->pg_flags = 0;
+		adev->pg_flags = AMD_PG_SUPPORT_VCN;
 		adev->external_rev_id = adev->rev_id + 0x50;
 		adev->cg_flags = AMD_CG_SUPPORT_GFX_CGCG |
 				AMD_CG_SUPPORT_GFX_CGLS;