Remove non existent preferred_network_mode_choices_lte

Credit:dhacker29
Set device specific bluetooth name

Credit:dhacker29
Revert "Move ro.telephony.ril.v3 to data/local.prop

to allow setting change
Change prop to new svdo
update init.target.rc

Credit:Hashcode
set default keyboard brightness to 255

Credit:Hashcode
system.prop: Enable usevoicetechfordata property

Credit:dhacker29