Test APIs below: getTetherableWifiRegexs() getTetherableUsbRegexs() getTetherableBluetoothRegexs() TetheringInterfaceRegexps.getTetherableWifiRegexs() TetheringInterfaceRegexps.getTetherableUsbRegexs() TetheringInterfaceRegexps.getTetherableBluetoothRegexs() Bug: 152737526 Test: atest CtsTetheringTest Change-Id: Icb7d8718d0aa6574b4c9dd1e17d7feb300fad2aa Merged-In: Icb7d8718d0aa6574b4c9dd1e17d7feb300fad2aa (cherry picked from commit 9f11d903a1d8cc6705481360bae4fb97cfbb966d, aosp/1271822)