Merge "Transition SerialManager to @EnforcePermission" am: dd9db63692 am: ada390bead am: ed7e6f6bdf am: a233ce9dc7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1946227

Change-Id: Iac629eab14a50b09549b92386aa6ca3265c75c3e