drm/amd/display: Add ABM control to panel_config struct.

Reviewed-by: Josip Pavic <Josip.Pavic@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Ian Chen <ian.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dc_link.h

@@ -127,6 +127,12 @@ struct dc_panel_config {
 		unsigned int extra_t12_ms;
 		unsigned int extra_post_OUI_ms;
 	} pps;
+	// ABM
+	struct varib {
+		unsigned int varibright_feature_enable;
+		unsigned int def_varibright_level;
+		unsigned int abm_config_setting;
+	} varib;
 	// edp DSC
 	struct dsc {
 		bool disable_dsc_edp;