drm/amd/display: Promote DAL to 3.2.229

This DC version brings along:
- Enable FPO optimization
- Support for 6.75 GBps link rate
- Fixes to underflow, black screen and more
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@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.h

@@ -45,7 +45,7 @@ struct aux_payload;
 struct set_config_cmd_payload;
 struct dmub_notification;
 
-#define DC_VER "3.2.228"
+#define DC_VER "3.2.229"
 
 #define MAX_SURFACES 3
 #define MAX_PLANES 6