drm/amd/display: 3.2.168

This version brings improvements in the following:

- Drop unnecessary DCN guards
- Improve Z9 interface
Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: NAric Cyr <aric.cyr@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

@@ -47,7 +47,7 @@ struct aux_payload;
 struct set_config_cmd_payload;
 struct dmub_notification;
 
-#define DC_VER "3.2.167"
+#define DC_VER "3.2.168"
 
 #define MAX_SURFACES 3
 #define MAX_PLANES 6