Merge "cameraserver: clear all requests and signal mRequestSignal from...

Merge "cameraserver: clear all requests and signal mRequestSignal from RequestThread during disconnect()." am: e70521b7 am: 40b25026

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2280835



Change-Id: I094662c7682ce419541b1dcf4936dff7b84c3e6d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>