Merge "Camera: Fix docs for mandatory stream combinations" into udc-dev am: 91973000f3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24640918

Change-Id: If48af670f01bfdc32f71753a6a02fd1cf0718868
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>