smdk4412-common: Add n801x to Android.mk

Since we are combining n8010 and n8013, this new "device" needs to be added to
the various makefiles.

Change-Id: Ia80280439c71fec3296e1b678e5dc2e9434e0ccc
Merge "smdk4412-common: Add n801x to Android.mk" into android-4.4