Merge "DO NOT MERGE: WM: Only allow system to use NO_INPUT_CHANNEL." into qt-dev am: 525770f7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13205849

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I40066702ef4d4952e4bb3a7d533d9fddb4f53715