wifi: Add access network type support

The access network type can be used to indicate network metered state.
Add access network type support when create access point.

Test: Manual Test, check client scan IE to show correct interworking
value. see: b/137879206#comment14
Test: atest VtsHalWifiHostapdV1_0TargetTest
Test: atest VtsHalWifiHostapdV1_1TargetTest
Test: atest VtsHalWifiHostapdV1_2TargetTest
Bug: 137879206

Change-Id: I2b539486821e159d6cb0edf66d2ee6fafd33e9bc
3 files changed