Merge "Add dhcp leasesSubnetPrefixLength and freeze the networkstack aidl v15" am: e64134d173

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/2002151

Change-Id: I2ec5c7dd65a5a73ac6e26a28e5d49fc3f03ce1c7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>