am 52688265: Add liblog

* commit '526882652bc7f97dfbdbf33f1a5966b1f05fbacf':
  Add liblog
tree: 558b1854698f835ed7035d150517596e15c56811
  1. CleanSpec.mk
  2. include/
  3. libril/
  4. librilutils/
  5. reference-ril/
  6. rild/