选用NVT触摸屏
	modified:   .config
	modified:   README.md
Revert "选用NVT触摸屏"

This reverts commit 24c4aa8ec01b2c2c6448f961c49b105161a999ff.
	new file:   wm9713.c
喇叭代替耳机发声
	modified:   wm9713.c
	new file:   ov3640.c
	new file:   ov3640.h
Merge branch 'master' into shampoo