Cameraserver framework HAL is marked optional am: ac507e91ad am: 9daefb93f5

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/3117486

Change-Id: I8e1ed2bd656af353e7d07832bb6d7a732922ee86
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>