add a permission utility

The utility can dump or grant all revoked runtime permissions.

The utility needs platform certificate to function properly (for
granting).

Change-Id: I6f460a598b3aaf3d718d6b5de55b3143159a05d3
3 files changed
tree: e07ae02d8251ff8f0a8a778663885c1e2bbeb91c
  1. libraries/
  2. tests/
  3. utils/