selftests/bpf: Correct two typos

When wrapping code, use ';' better than using ',' which is more in line with
the coding habits of most engineers.

Signed-off-by: Lu Hongfei <[e-mail]>
Signed-off-by: Daniel Borkmann <[e-mail]>
Acked-by: Hou Tao <[e-mail]>
Acked-by: Stanislav Fomichev <[e-mail]>
Link: https://lore.kernel.org/bpf/[e-mail]

tools/testing/selftests/bpf/benchs/bench_ringbufs.c

···
 	ctx->skel = perfbuf_setup_skeleton();
 
 	memset(&attr, 0, sizeof(attr));
-	attr.config = PERF_COUNT_SW_BPF_OUTPUT,
+	attr.config = PERF_COUNT_SW_BPF_OUTPUT;
 	attr.type = PERF_TYPE_SOFTWARE;
 	attr.sample_type = PERF_SAMPLE_RAW;
 	/* notify only every Nth sample */

tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c

···
 	exp_active_estab_in.max_delack_ms = 22;
 
 	exp_passive_hdr_stg.syncookie = true;
-	exp_active_hdr_stg.resend_syn = true,
+	exp_active_hdr_stg.resend_syn = true;
 
 	prepare_out();