Bump IpMemoryStore schema to 5, add NetworkEvents table am: 58852780a7 am: 0ef839f651

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/3245180

Change-Id: Ic1ae88c8db347abebf171822a10f199a24f648e4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>