Merge changes I5c15ef91,I2bcd19a3

* changes:
  WifiStack: Turn off proguard optimization of proto classes
  Revert "Revert "WifiStack: Statically link protobuf lite""
tree: 3c06d3f17ad3cc951054d703c0f9e4fdac35c60d
  1. service/
  2. PREUPLOAD.cfg