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

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

Change-Id: Icc9da0299761621ac79cb18d43e40b35f64e4b00
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>