drm/amd/display: 3.2.152

* Correct degamma coefficients
* Optimize bandwidth on following fast update
* Fix multiple memory leaks reported by coverity
* Get backlight from PWM if DMCU is not initialized
Acked-by: Mikita Lipski <mikita.lipski@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 @@
 /* forward declaration */
 struct aux_payload;
 
-#define DC_VER "3.2.151"
+#define DC_VER "3.2.152"
 
 #define MAX_SURFACES 3
 #define MAX_PLANES 6