drm/display/dsc: add YCbCr 4:2:2 and 4:2:0 RC parameters

Include RC parameters for YCbCr 4:2:2 and 4:2:0 configurations.
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-9-dmitry.baryshkov@linaro.orgAcked-by: Dave Airlie <airlied@redhat.com>

include/drm/display/drm_dsc_helper.h

@@ -13,6 +13,8 @@
 enum drm_dsc_params_type {
 	DRM_DSC_1_2_444,
 	DRM_DSC_1_1_PRE_SCR, /* legacy params from DSC 1.1 */
+	DRM_DSC_1_2_422,
+	DRM_DSC_1_2_420,
 };
 
 void drm_dsc_dp_pps_header_init(struct dp_sdp_header *pps_header);