clat: just always set mark unconditionally, part 2 am: 8bf5967d1e

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2392252

Change-Id: I9564068a9bc21a9765036c2030a3cb79455b88e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>