add external_sd directory to ramdisk for mounting external sdcard in cwmr
This addition allows external sdcard mounting in recovery by providing the necessary mountpoint.

Change-Id: Iad32e531d9d35b370645dcf729bc5a70cbf21167
smdk4412-common: Add new devices

Change-Id: Id7d0e92b268809a13f1cdba26dd321d6ccd6f78d
add AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET to audio policy

Change-Id: I9bcc5c512467ce429aa96d4349fd05f5680208f9