[automerger skipped] Add java class for Ingress discard bpf map key value am: 9024892db8 -s ours am: c2903ab76f -s ours

am skip reason: Merged-In Ic9ac423aee2a8fb9709b0acf012ec57cdfa019f9 with SHA-1 d4fe2c3a50 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/28712472

Change-Id: Ic96dfe3a53fecd6e62043f1fe2c608d70032b4cf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>