DeviceSettings: add more overlays

Devices such as t0ltevzw don't have hspa and the p4noteltevzw(tablet) doesn't
have touchkeys, so this will allow them to be disabled.

Change-Id: I5c37f84c9266289e50043e82193ce3d77fb072f1
Merge "DeviceSettings: add more overlays" into cm-10.1
Merge branch 'cm-10.1' of github.com:CyanogenMod/android_device_samsung_smdk4412-common into cm-10.1