Merge "Camera: Improve session parameter documentation" into udc-dev am: 5a2fc5fa40 am: c687c100d6 am: 83d9eaef33

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24622278

Change-Id: I0e73f242ec0b7a131920f27ed3cb40441d53b944
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>