Deprecate AImageReader_getWindowNativeHandle am: 5f86662a67

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/24642003

Change-Id: If70190077324a03a302ec8f012fd83515095e1ed
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>