Update notes for submitted changes

* Don't compile libbcc on ARM64 targets yet (need ARM64 librsloader).
Update notes for submitted changes

* Fix build with new host toolchain
Update notes for submitted changes

* Fix incorrect memcmp in RSInfoReader.
Update notes for submitted changes

* libbcc: disable more modules for arm64
Update notes for submitted changes

* Remove unused static function in tools/bcc/Main
Update notes for submitted changes

* Enable 64bit build for x64 target
Update notes for submitted changes

* Revert "Enable 64bit build for x64 target"
Update notes for submitted changes

* Add DISABLE_LLVM_DEVICE_BUILDS to libbcc.
Update notes for submitted changes

* libbcc: remove use of LOCAL_NO_2ND_ARCH