Merge "switch SynchronizeKernelRCU back to jni - but from BpfMap" into main am: 2a0a856c17

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2824390

Change-Id: I866d158ed6558aa25e0aa1459e52d2b83f03307c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>