[automerger] RESTRICT AUTOMERGE: WifiServiceImpl: fix and add tethering checks am: de0c1e355d am: 1833210c06 am: 8f6000cabe

Change-Id: If41d365aac1db18191898889d2dac69dd33edc3a
tree: 99d1efcb7bccd4dca0d7a7f86640c966657b9877
  1. service/