* [cmake] support Android arm64-v8a & armeabi-v7a native c++ sdk
* [cmake] fixed patchelf download on mac and android
* [lite] Add threads and power_mode option support
* [pybind] update runtime pybind for lite power mode
* [python] Add set_lite_power_mode api to runtime
* [Lite] add lite enable_fp16 option support
* [lite] add more options for lite backend.
* [cmake] fixed Paddle Lite typo
* [runtime] format LitePowerMode enum comments
* [runtime] format lite option comments
* [cmake] support Android arm64-v8a & armeabi-v7a native c++ sdk
* [cmake] fixed patchelf download on mac and android
* [lite] Add threads and power_mode option support
* [pybind] update runtime pybind for lite power mode
* [python] Add set_lite_power_mode api to runtime