[automerger skipped] Update network preference priority value for VPN am: b5c9e3567f -s ours

am skip reason: Merged-In I197cb358e8e30355fbf675e4c623abebe7abdb7f with SHA-1 da7129d862 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/15258458

Change-Id: Id0562b49fc90f3c3ad5ffde0deb06af8bfae7210