Merge changes Ia870db4c,I4eb2abf4 into gce-dev

* changes:
  Additional fixes for warnings
  Clean up warnings in cuttlefish_common
tree: 3d2165ea9e475d9387363a188d3a4938dac80ebe
  1. common/
  2. guest/
  3. host/
  4. tools/
  5. Android.bp
  6. Android.mk