Still cannot get rid of init related blobs

* add modprobe (for sound and many other function)

Signed-off-by: Shaka Huang <shakalaca@gmail.com>
replace device/asus/a500cg with $(LOCAL_PATH)

Signed-off-by: Shaka Huang <shakalaca@gmail.com>
For working external sdcard

Signed-off-by: Shaka Huang <shakalaca@gmail.com>