Replace the tokenizer in cpp.py with libclang. Bug: 18937958 Change-Id: I27630904c6d2849418cd5ca3d3c612ec3078686d
Other changes: - Modify update_all.py to skip ion header files when importing into aosp. - Fix generate_uapi_headers.sh to handle imports from a linux-stable kernel. Change-Id: I1ad81b9ccb063c21740f9875f2cc1238052cd4b3