Merge "Camera: Update timestamp base doc for SurfaceTexture" into tm-dev am: c1a0dc2c am: b7aa5d06 am: d85a5cef

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17824805



Change-Id: Iaf1d8022d73d8ca04df1ef0ed106da0b36b9ee9b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>