Add xxhdpi assets

Bug: 8976566
Change-Id: I00034994fe2c619e91362cbaddc722597a1ae22f
35 files changed
tree: 7a768a0990b02d0ba941cd0b5cb9eae3489448e6
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk