Merge "Camera: Improve session parameter documentation" into udc-dev am: 5a2fc5fa40 am: 4702776899

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

Change-Id: I1f794e4700d5ab68c3976a474ea12a23b5150f87
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>