bpf: add netfilter program type #20617

Job	Run time
set-matrix	1s
build for x86_64 with gcc	5m 37s
build for x86_64 with llvm-16	5m 15s
build for aarch64 with gcc	5m 47s
build for aarch64 with llvm-16	5m 28s
build for s390x with gcc	13m 35s
test_progs on x86_64 with gcc	4m 48s
test_progs_parallel on x86_64 with gcc	3m 38s
test_progs_no_alu32 on x86_64 with gcc	4m 13s
test_progs_no_alu32_parallel on x86_64 with gcc	3m 21s
test_maps on x86_64 with gcc	3m 35s
test_verifier on x86_64 with gcc	1m 59s
test_progs on x86_64 with llvm-16	4m 23s
test_progs_parallel on x86_64 with llvm-16	2m 19s
test_progs_no_alu32 on x86_64 with llvm-16	2m 59s
test_progs_no_alu32_parallel on x86_64 with llvm-16	2m 2s
test_maps on x86_64 with llvm-16	2m 5s
test_verifier on x86_64 with llvm-16	1m 13s
test_progs on aarch64 with gcc	4m 4s
test_progs_parallel on aarch64 with gcc	3m 45s
test_progs_no_alu32 on aarch64 with gcc	3m 53s
test_progs_no_alu32_parallel on aarch64 with gcc	3m 53s
test_maps on aarch64 with gcc	2m 38s
test_verifier on aarch64 with gcc	2m 41s
test_progs on aarch64 with llvm-16	5m 34s
test_progs_parallel on aarch64 with llvm-16	3m 33s
test_progs_no_alu32 on aarch64 with llvm-16	4m 50s
test_progs_no_alu32_parallel on aarch64 with llvm-16	2m 48s
test_maps on aarch64 with llvm-16	4m 24s
test_verifier on aarch64 with llvm-16	2m 19s
test_progs on s390x with gcc	42m 43s
test_progs_no_alu32 on s390x with gcc	11m 49s
test_maps on s390x with gcc	1h 39m 54s
test_verifier on s390x with gcc	10m 58s
	4h 42m 4s

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