Replace the tokenizer in cpp.py with libclang. Bug: 18937958 Change-Id: I27630904c6d2849418cd5ca3d3c612ec3078686d
Rename aarch64 build targets to arm64. The gcc toolchain is still aarch64. Change-Id: Ia92d8a50824e5329cf00fd6f4f92eae112b7f3a3