Merge "Fix QR code scanner layout in "Pair devices over Wi-Fi" page." into sc-qpr1-dev am: 85d20f5957 am: 6b5973c48e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/15854410

Change-Id: I386939b5835f1f9cbd7f35d78c561b2135988ffa