[automerger skipped] Add methods for updating ingressDiscardRule bpf map to BpfNetMaps am: b01647922d -s ours am: f83f207cb8 -s ours

am skip reason: Merged-In I42bc0adc22c3018480029d624053f758d815e526 with SHA-1 77b49996d2 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/28712473

Change-Id: I475345a5b0fbcfa2fe41306e0e085d5b69a65e87
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>