[automerger skipped] Merge "Move NetworkStackConstants to libs/net" am:...

[automerger skipped] Merge "Move NetworkStackConstants to libs/net" am: bfcd0ae1 am: 037d363b -s ours am: dbe79271 -s ours

am skip reason: Change-Id Ia69fed211ac9485beabc280cd17af2826b8ea7f9 with SHA-1 86d8f5bf is in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/1440555

Change-Id: I649094027dda7bb5bc3e91eb8d8a169558299f59