Merge pi-platform-release to stage-aosp-master - DO NOT MERGE

Change-Id: Ibdbef72fcbee2eb6688f526e353f7244b93df734
tree: 7ef3ef397f2c6848bd48d37e8582100df42f93c9
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/