Add Comments for androidx.car_car reference in SystemUpdater

Test: No Change of code.
Change-Id: Id6a380c749d91500d1401c1c11f10a63006ac56f
1 file changed
tree: 162b1e4d47edf2174a517692e9dc74417857c448
  1. res/
  2. src/
  3. Android.mk
  4. AndroidManifest.xml
  5. PREUPLOAD.cfg