Merge changes Icf679bfa,I62cbbd59

* changes:
  Remove x86_64-linux-android gcc-4.7 bins, libs, and includes
  add OWNERS for prebuilts/gcc/linux-x86/x86/x86_64-linux-android-4.7
tree: 4f013987a4adb4fd9b94e07ec45ac5717a8931e6
  1. OWNERS