Added disallowed APN types configuration support

The change added the configuration support for disallowed APN
types for WWAN or WLAN transport. This is to meet carrier policy
that certain traffic for APN types are not allowed on given
transport.

Bug: 135551751
Test: Manual + unit tests
Change-Id: I63c44d1e774b7491929406929e1a5a556db9515a