Add release-tools

Change-Id: I37569bf33ad45d8bcc0d01dc9d0a1fd6123a8b43
Update Build Script

Change-Id: Ifc897dd4e24aabf8bdc6aa3686686254d249749d
Add kbc_l01f_aosp_defconfig

Change-Id: Id3bd68ade340a68186489cad11bdbdc73eaaf1bc