bpf, arm64: Call bpf_jit_binary_pack_finalize() in bpf_jit_free()

The current implementation seems incorrect and does NOT match the
comment above, use bpf_jit_binary_pack_finalize() instead.

Fixes: 1dad391 ("bpf, arm64: use bpf_prog_pack for memory management")
Acked-by: Puranjay Mohan <[email protected]>
Signed-off-by: Hengqi Chen <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: Puranjay Mohan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>

Author: chenhengqi

arch/arm64/net/bpf_jit_comp.c

@@ -3115,8 +3115,7 @@ void bpf_jit_free(struct bpf_prog *prog)
 		 * before freeing it.
 		 */
 		if (jit_data) {
-			bpf_arch_text_copy(&jit_data->ro_header->size, &jit_data->header->size,
-					   sizeof(jit_data->header->size));
+			bpf_jit_binary_pack_finalize(jit_data->ro_header, jit_data->header);
 			kfree(jit_data);
 		}
 		prog->bpf_func -= cfi_get_offset();