Don't power on radio when the device is being shut down. am: 10310622 am:...

Don't power on radio when the device is being shut down. am: 10310622 am: df934717 am: 5c537868

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/15868802

Change-Id: I6772d27cce1eb675c6b2060cf501d812439801f7