Revert "NetBpfLoad: disable mainline on < U QPR3" am: 4e4f8720f2 am: d97a25b54d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3134202

Change-Id: I518a2c80d838adfe9d99df7d365387bc70a9ee6c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>