am f3f2ad2d: Fix an issue with opt/chips/sample/Android.mk redefining res_dirs which broke our build because one of the res dirs does not exist.

* commit 'f3f2ad2de15191531d907d6862a63153400a2176':
  Fix an issue with opt/chips/sample/Android.mk redefining res_dirs which broke our build because one of the res dirs does not exist.
tree: 7b9490832f69f4f6da7cea6f45415278939be5f9
  1. res/
  2. sample/
  3. src/
  4. tests/
  5. Android.mk
  6. AndroidManifest.xml
  7. project.properties