Merge "BpfRingBuffer: allow subclassing, add epoll support" into main am: 9f0fb132ee am: 345cce62b3

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3155176

Change-Id: Idbdeb0ef60d09ec99ae71fbece47cacd899ab6b0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>