Merge "Make WallpaperMS bind wallpaper component PendingIntent immutable." into qt-dev am: e174ab0148 am: 02513e4866 am: 676b35b98e am: b7c896bef2 am: 8190e4f7b0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12719027

Change-Id: Id0b3b39a6f0f645934936a1376dd6ccdd503e5a9