drm/amdgpu: bump version for exporting gpu info for gfx9

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

@@ -64,9 +64,10 @@
  * - 3.12.0 - Add query for double offchip LDS buffers
  * - 3.13.0 - Add PRT support
  * - 3.14.0 - Fix race in amdgpu_ctx_get_fence() and note new functionality
+ * - 3.15.0 - Export more gpu info for gfx9
  */
 #define KMS_DRIVER_MAJOR	3
-#define KMS_DRIVER_MINOR	14
+#define KMS_DRIVER_MINOR	15
 #define KMS_DRIVER_PATCHLEVEL	0
 
 int amdgpu_vram_limit = 0;