Re-add check for metered APNs regardless of IWLAN

While in legacy mode and registered to IWLAN, we need
to check for metered APNs.
Supl request will -NOT- be offloaded to wifi, hence in case of
roaming and data roaming off, user will end up with extra costs

Bug: 143091304
Test: Precondition, In roaming network with roaming disabled in settings
1. Enable flight mode (important)
2. Reboot phone
3. Disable flight mode
4. Wait for phone to connect to wifi and network (IWLAN reported by modem)
5. Unplug the network cable from the router
6. Use Google Chrome and Google Maps.
Result: Data should not be sent over cellular network.

Merged-In: I8cf8fe8f75889029db2c6d4ad945dcc79ab3fed6
Change-Id: I8cf8fe8f75889029db2c6d4ad945dcc79ab3fed6
Signed-off-by: Sebastian Achim <sebastian.1.achim@sony.com>
(cherry picked from commit db5d0dca)