Merge "surface_control.h: Clarify callback documentation" into sc-dev am: 6e2e0eff am: 96ce63a4 am: 75a16964

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14520884

Change-Id: Iea2764d797ec6de6eb771d65e95676f4f817afe5