am e7248f2f: Merge "Really use GCC for ARM64"
am e7248f2f: Merge "Really use GCC for ARM64"

* commit 'e7248f2f1835ed194296d4f989c56251d03b834b':
  Really use GCC for ARM64

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst