drm/amd/powerplay: Get more than 8 level gfxclk states

To apply on Vega12 for more than 8 gfx dpm levels
Signed-off-by: NKenneth Feng <kenneth.feng@amd.com>
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h

@@ -33,7 +33,7 @@
 #define WaterMarksExist  1
 #define WaterMarksLoaded 2
 
-#define VG12_PSUEDO_NUM_GFXCLK_DPM_LEVELS   8
+#define VG12_PSUEDO_NUM_GFXCLK_DPM_LEVELS   16
 #define VG12_PSUEDO_NUM_SOCCLK_DPM_LEVELS   8
 #define VG12_PSUEDO_NUM_DCEFCLK_DPM_LEVELS  8
 #define VG12_PSUEDO_NUM_UCLK_DPM_LEVELS     4