Merge "Add non-system overlay flag for usb perm dialog" into sc-qpr1-dev am:...

Merge "Add non-system overlay flag for usb perm dialog" into sc-qpr1-dev am: 9c58022d am: 5f811674

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15556998

Change-Id: I8e5868b913c25b3b5717cfa599bcbbeec0367f69