toggleLTE: switch to Global mode on devices that default to it

Verizon devices default to Global mode. When the LTE toggle is
flipped back on, these devices should go to Global(10) instead
of LTE/CDMA/EVDO(8)

Change-Id: Id8e44bbca09d46b6622c72627f7dbd3c1ad4b678
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_services_Telephony into cm-11.0