Implement the new requestNetworkScan API with current modem API.

Test: Telephony sanity tests
Bug: 30954762

Merged-in: Id4ec30c5ca670393b1f83adfeb46fef938faf9e9
Change-Id: Id4ec30c5ca670393b1f83adfeb46fef938faf9e9
(cherry picked from commit b1bed745159e5db8fc40de06dc2c0762cbee0be6)
1 file changed