add an option to use prebuilts

Change-Id: I340fb240f4109cddfda70cd17a07d06fef0b8209
3 files changed
tree: 65b32281941a54d5d03ebf3b2bfed21f85e07dec
  1. Android.mk
  2. als/
  3. libsensors_iio/
  4. tilt/