MTK平台代码工程中很多开关，及修改某模块相关代码快速定位，是学习研究MTK平台的重要参考，方案公司应对不同的客户开发中经常要修改模块功能，所涉及的文件及开关，贡献出来与大家分享。

-MTK platform code works in a lot of switches, and modify the code in a module quickly locate, study and research is an important reference MTK platform, program development companies to deal with different customers often want to modify the module functions, the documents involved and the switch out and contribute to share.