update ls980

Bring in overlays from CM

Change-Id: I3f3e10e40ef5c057179d7ff789700f44dbd4e84e
ls980: add back dependencies

Change-Id: I77ada4453fcc1b7ce2fb84d034399d0be1169acb
Merge branch 'android-4.4' of https://github.com/omnirom/android_device_lge_ls980 into android-4.4

Conflicts:
	omni.dependencies