drm/amdgpu: Mark all instances of struct drm_info_list as const

All these are compile time constand and the
drm_debugfs_create/remove_files functions take a const
pointer argument.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Nils Wallménius <nils.wallmenius@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 660213a..d1ad763 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1701,12 +1701,12 @@
  * Debugfs
  */
 struct amdgpu_debugfs {
-	struct drm_info_list	*files;
+	const struct drm_info_list	*files;
 	unsigned		num_files;
 };
 
 int amdgpu_debugfs_add_files(struct amdgpu_device *adev,
-			     struct drm_info_list *files,
+			     const struct drm_info_list *files,
 			     unsigned nfiles);
 int amdgpu_debugfs_fence_init(struct amdgpu_device *adev);