Merge "[EasterEgg][Bugfix] Create PendingIntents with flag FLAG_MUTABLE." am: facf360938 am: 8ffb12d4fb

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2405715

Change-Id: Ic03cbc0c9ecc1e19933d6645a341295ea324d2b1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>