Revert "optimized build script"
Revert "optimized build script"

This reverts commit b44943bc7b1906157027d5e0e6de0ba2abe5a47c.

flyboarder/AirOS_pre2.0,flyboarder/AirOS_pre2.0,flyboarder/AirOS_pre2.0,flyboarder/AirOS_pre2.0,flyboarder/AirOS_pre2.0