Merge "[CredManUi] Updated the spacing between app bar and credential cards." into udc-dev am: f285d70f am: 1f003ed1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21692280



Change-Id: I1ccda005725b3e376ebc8ffb16e2fd0855442833
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>