Squash to "selftests/bpf: Add bpf scheduler test"

Update endpoint_init() in sched_init().

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Message-Id: <ad4f9023ffdc2a438ff81cb197e542e13028c63d.1726966638.git.tanggeliang@kylinos.cn>

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

@@ -499,7 +499,7 @@ static struct nstoken *sched_init(char *flags, char *sched)
 	if (!ASSERT_OK_PTR(nstoken, "create_netns"))
 		return NULL;
 
-	if (endpoint_init("subflow") < 0)
+	if (endpoint_init("subflow", 2) < 0)
 		goto fail;
 
 	SYS(fail, "ip netns exec %s sysctl -qw net.mptcp.scheduler=%s", NS_TEST, sched);