Set network type to ro.telephony.default_network if hiding preferred network type
Sungmin Choi authored
Since pref is being hidden from user, set network mode to default
in case it is currently something else. That is possible if user
changed the setting while roaming and is now back to home network.

Bug: 25012603
Change-Id: I2bdf92a3c62a2d2e995f74285a77b33be70cd82f
da19cf88