am ad1961a7: Merge "Don\'t use libunwindbacktrace for non-ARM."
am ad1961a7: Merge "Don\'t use libunwindbacktrace for non-ARM."

* commit 'ad1961a74736e02ab16d8688ba7f41a687340bdc':
  Don't use libunwindbacktrace for non-ARM.

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