Trigger system key user activity during keyguard am: b398162b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22712141



Change-Id: I8f2932b580e9c76202a06edae8e41995eb436e95
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>