Merge changes I079bd2da,Idd49f134,I29c21d25,I7bbf0403 into nyc-mr1-dev

* changes:
  Fix Formatting And Syntax Issues with tel_test_utils.WiFiUtils
  Error Check the Airplane Mode Setting in setup_iwlan
  Improve the consistency of hanging up calls
  Update File Formatting with YAPF
tree: 15c33979a3a91091ffa03c8c360979d48ae6852b
  1. acts/
  2. Android.mk