Merge changes Id7feda30,Ib2237f19 into gce-dev

* changes:
  Writes region description to shmem file in the launcher.
  Move align functions to libcuttlefish_utils
tree: 0472ee0f9c6a67ac114af2cb36b3241fde54afee
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS