Legacy extras: add busybox

Change-Id: I507df6e3224319a51d0feac57bd2dc0f9991cae3
Add AT&T LG G3 (D850) Support

Change-Id: If3dd0bbb13ab8581f19ffb2de82b96f43358104e
find7: update build description

taken from X9006&X9076ColorOS_V2.0.0i_full.zip

Change-Id: Ic5446cdc5e3b13ce644fb5a5dc2051c5f12f67b0