Merge "Refactor CarServiceHeperService and add unit tests" into rvc-dev am: 33691e10c4 am: bb2933c7e0

Change-Id: I60fabf6afcf3e816fc3828b7efd4f44e267fca96
tree: d8859fbfd94b2c7e8f3c22e0ecb9da9cad66367c
  1. src/
  2. tests/
  3. Android.bp
  4. OWNERS