S- not to crash on NetworkInfo(null) or setDetailedState(null) am: dece0d805f am: 66bd87f0d4 am: 2f6631cd7c

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1892101

Change-Id: I968710654234e9756ef5f3cc39a5cb4741887366