ls980: kitkat updates

* Hide Mobile plan option: currently returns "Sprint has no known provisioning site"
* Packages/apps/Phone --> packages/services/Telephony: mark ls980 a world phone
* Remove leftover apn call in cm.mk and organize device.mk a bit
* Fix eri.xml: Sprint recognized as carrier network now
* Update PRODUCT_BUILD_PROP_OVERRIDES to ZVC release

Change-Id: Ib31a382be8bed21aae2331a5138a01b7c4d9fa19
Signed-off-by: Ricky Salinas <rsalinas1@mail.usf.edu>