[automerger skipped] Update room dependency to 2.0.0.
am: 83a980b891  -s ours

Change-Id: I8c91dcb8aa412496e51b4c86187276c35786edf6
tree: 8515ab96c227799d97786728afe962af02b88773
  1. libs/
  2. res/
  3. src/
  4. Android.mk
  5. AndroidManifest.xml
  6. PREUPLOAD.cfg