Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle-Lite into conv_dw_5x5

Merge branch 'conv_dw_5x5' of https://github.com/chenjiaoAngel/Paddle-Lite into conv_dw_5x5

Merge branch 'conv_dw_5x5' of https://github.com/chenjiaoAngel/Paddle-Lite into conv_dw_5x5

* [ARM] Add op pixel_shuffle for arm kernel. test=develop

* Delete OpenMP pragma clause

Delete OpenMP pragma clause because openmp not support well for now on windows and Mac OS.

* Just trigger CI. test=develop

* [LITE][BM] Fixed dependency path issues for compiling third-party libraries. test=develop

* Update CMakeLists.txt

Merge branch 'conv_dw_5x5' of https://github.com/chenjiaoAngel/Paddle-Lite into conv_dw_5x5

* add new ops for ernie, test=develop

* drop lookuptable, test=develop

* update cast compute, test=develop

* add slice gather op, test=develop