Merge "Update default user icon colors." into tm-dev am: 78c0c44c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17607300



Change-Id: I261c4f115673da1333288f47ae653f6954ac4b3d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>