am 8115a9fb: Merge "external/kernel-headers: rename aarch64 target to arm64"

* commit '8115a9fbd28b7f4d3e0f62459e7ddff8f11f0255':
  external/kernel-headers: rename aarch64 target to arm64
tree: e385b388f2dba35e623a05646942ceaf1c5a3990
  1. original/
  2. CleanSpec.mk