WiFi: Add missing stubs to AbstractWifiService.

This adds stubs to match new methods of IWifiManager.aidl recently added
by Change-Id Ib2226a5e6d94b1d6247f958513c858cf38686ce8.

Bug: 112338174.
Test: Compiled.
Change-Id: Idc72f806391e7c109131d8d2c390ec54f022e403
1 file changed