bootctrl: Initial commit for the boot control HAL

This HAL is needed to enable recovery on devices that support A/B
partitions.

Change-Id: Id7600573b6da579ed90aa2a26bed2409d631039d
3 files changed
tree: 9fa827a9df9b6f7a2daef122a5c3ff892a6bf4c6
  1. Android.mk
  2. boot_control.c
  3. NOTICE