initial

new file:   device_tree.txt                  : "dts,dtsi,dtb"      on linux3.x
new file:   gpio.txt                         : "gpio config"       on mtk platform
new file:   seAndroid.txt                    : "selinux/seandroid" on android
new file:   sensor_porting_on_mtk_kk_abp.txt : "sensor sw arch"    on mtk platform on KK
new file:   sensor_porting_on_mtk_l_aosp.txt : "snesor sw arch"    on mtk platform on L