jflteatt: Update init to I337UCUFNB1 (4.4.2)

This also aligns the ro.product.model with stock.

Change-Id: Ib783eaa3a4bc052704efeae99e0bc45fbc2aa1ab
Revert "init: enable auto-loki for att and vzw variants"

* not ready yet, causes loki to be run on devices that don't need it
* will unrevert when this is merged:
  http://review.cyanogenmod.org/#/c/59620/

This reverts commit 472729138ddf1bb5f97dafaf1b270cb158841801.

Change-Id: Ia1129774196a412ae1e7d589a091dba7443e41bb
jflte: restore pre-unification vzw home operator prop

jfltevzw's default.prop set ro.cdma.home.operator.numeric to 311480
jflte's unified init sets the prop to 310004 for phones formerly known as jfltevzw.

Change-Id: I3c3a5e6c6783cc31c931b4699b9d2456a69b1e8e
jflte: remove network_mode.xml overlay

Change-Id: Id528397699df45a1efcd983d4f196e3638225e5a
props for jflteusc

Change-Id: Iaa7a8341d50909761ee0aa947cd84e6dea407310
jflte_init: add cricket and sprint operators

Change-Id: I3d46234904d8f8461de0bbb0354da2b5b31d7cfc