drm/amdgpu: fix indentation in amdgpu_display.h

That was somehow completely of.
Signed-off-by: Christian König <christian.koenig@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_display.h

@@ -25,9 +25,8 @@
 
 struct drm_framebuffer *
 amdgpu_user_framebuffer_create(struct drm_device *dev,
-						       struct drm_file *file_priv,
-							   const struct drm_mode_fb_cmd2 *mode_cmd);
-
+			       struct drm_file *file_priv,
+			       const struct drm_mode_fb_cmd2 *mode_cmd);
 void amdgpu_output_poll_changed(struct drm_device *dev);
 
 #endif