Merge "Don't crash Tethering service when WiFi feature is missing" am: 736f8ec55a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1577289

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Idbef5a2da18394a3baa53ba7267a9324816dd137