bpf: Fix a bpf_jit_dump issue for x86_64 with sysctl bpf_jit_enable. #21888

Job	Run time
set-matrix	1s
build for x86_64 with gcc	3m 58s
build for x86_64 with llvm-16	3m 36s
build for aarch64 with gcc	4m 16s
build for s390x with gcc	13m 11s
veristat	2m 3s
test_progs on x86_64 with gcc	4m 10s
test_progs_parallel on x86_64 with gcc	2m 59s
test_progs_no_alu32 on x86_64 with gcc	3m 19s
test_progs_no_alu32_parallel on x86_64 with gcc	2m 38s
test_maps on x86_64 with gcc	2m 54s
test_verifier on x86_64 with gcc	1m 44s
test_progs on x86_64 with llvm-16	4m 1s
test_progs_parallel on x86_64 with llvm-16	2m 53s
test_progs_no_alu32 on x86_64 with llvm-16	3m 38s
test_progs_no_alu32_parallel on x86_64 with llvm-16	2m 37s
test_maps on x86_64 with llvm-16	2m 32s
test_verifier on x86_64 with llvm-16	1m 29s
test_progs on aarch64 with gcc	4m 20s
test_progs_parallel on aarch64 with gcc	2m 43s
test_progs_no_alu32 on aarch64 with gcc	3m 45s
test_progs_no_alu32_parallel on aarch64 with gcc	2m 39s
test_maps on aarch64 with gcc	3m 3s
test_verifier on aarch64 with gcc	1m 25s
test_progs on s390x with gcc	29m 42s
test_progs_no_alu32 on s390x with gcc	20m 58s
test_maps on s390x with gcc	1h 23m 16s
test_verifier on s390x with gcc	8m 7s
	3h 41m 57s

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