Merge "Do not set different gravity for non-moveable nav bar" into udc-dev am:...

Merge "Do not set different gravity for non-moveable nav bar" into udc-dev am: 64c27756 am: 5369328b am: bed289c7 am: 7729acbc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22954523



Change-Id: I45048165b1505cfc2553ff92e353044bd83565ad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>