am ea503d21: Merge "Raise x86 arch requirement to prescott."
am ea503d21: Merge "Raise x86 arch requirement to prescott."

* commit 'ea503d21c7d5ecb3deacbf50f3ec7366bf7bd573':
  Raise x86 arch requirement to prescott.

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build