Merge changes Ia0ca36fc,Ib42c0635

* changes:
  Enable liblog on host bionic
  Enable libbase/libutils/libziparchive on host bionic
tree: a2dc84b363633f5ce0f2e34ee1faaaef651dece5
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/