d2lte: Unbreak network mode options

Change-Id: Id0235bc9e81c09216c95e8150cb555b263c693af
d2lte: Modify 'roamingText3' for Network Extender support.

Looks like Verizon Network Extenders use roaming id 3 while connected,
so instead of showing 'Out of Neighborhood', show 'Network Extender' in
phone status.

Change-Id: I938f08d97a922fe8b9d85a163a5e809b6fd513f8
d2lte: restore pre-unification VZW home operator numeric

This was changed during the unification, put it back to what it was
previously.

Change-Id: Iddc5bcedd13d2fdf5a0cf0b1a918d0975dcda7a8
d2lte: remove network_mode.xml

Change-Id: Ibc85449754ad1984ed6b8c6f2b368fd8115d690d