Merge "libconnectivity_native add null check" am: 5778445ee0

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2478255

Change-Id: Iaa96ca3cf7d14e9f93518846be1e4ee55aea0433
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>