Fixed data leak after emergency call

Fixed a regression introduced in ag/17492053 where we
allowed SUPL request during emergency call or ECBM. The
incorrect logic made data leak always repro'd by hangup
an emergency call and then turn off data. Even without a SUPL
request, the internet data remains on after data disabled
because the network was incorrected treated as SUPL network.

Fix: 233589320
Test: Basic testing + atest DataNetworkControllerTest
Change-Id: I576be6e89193df30799918e8ab009e1dc228d61b