Merge changes Ibe525d29,I97e44689

* changes:
  Remove arm-linux-androideabi gcc-4.7 bins, libs, and includes
  add OWNERS for prebuilts/gcc/darwin-x86/arm/arm-linux-androideabi-4.7
tree: afcbb319fc0f9bcca4e023ecb568fd0cf13095ea
  1. OWNERS