selftests/bpf: Add ingress tests for txmsg with apply_bytes

Currently, the ingress redirect is not covered in "txmsg test apply".

Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/1669718441-2654-5-git-send-email-yangpc@wangsu.com