drm/radeon/kms: add tv standard property to tv connectors

Lets user select tv-standard.  The property was there,
just not hooked up.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_connectors.c

@@ -1053,6 +1053,9 @@ radeon_add_atom_connector(struct drm_device *dev,
 			drm_connector_attach_property(&radeon_connector->base,
 						      rdev->mode_info.load_detect_property,
 						      1);
+			drm_connector_attach_property(&radeon_connector->base,
+						      rdev->mode_info.tv_std_property,
+						      1);
 		}
 		break;
 	case DRM_MODE_CONNECTOR_LVDS:
@@ -1193,6 +1196,9 @@ radeon_add_legacy_connector(struct drm_device *dev,
 			drm_connector_attach_property(&radeon_connector->base,
 						      rdev->mode_info.load_detect_property,
 						      1);
+			drm_connector_attach_property(&radeon_connector->base,
+						      rdev->mode_info.tv_std_property,
+						      1);
 		}
 		break;
 	case DRM_MODE_CONNECTOR_LVDS: