Merge "Camera: Improve session parameter documentation" into udc-dev am: 5a2fc5fa

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



Change-Id: I87dfb2009fbd379608c59774aada90645562395e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>