selftests: mptcp: gives slow test-case more time

On slow or busy VM, some test-cases still fail because the
data transfer completes before the endpoint manipulation
actually took effect.

Address the issue by artificially increasing the runtime for
the relevant test-cases.

Fixes: ef36001 ("selftests: mptcp: signal addresses testcases")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/309
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/selftests/net/mptcp/mptcp_join.sh

@@ -2152,7 +2152,7 @@ remove_tests()
 		pm_nl_set_limits $ns2 1 3
 		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
 		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
-		run_tests $ns1 $ns2 10.0.1.1 0 -1 -2 slow
+		run_tests $ns1 $ns2 10.0.1.1 0 -1 -2 speed_10
 		chk_join_nr 3 3 3
 		chk_add_nr 1 1
 		chk_rm_nr 2 2
@@ -2165,7 +2165,7 @@ remove_tests()
 		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
 		pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
 		pm_nl_set_limits $ns2 3 3
-		run_tests $ns1 $ns2 10.0.1.1 0 -3 0 slow
+		run_tests $ns1 $ns2 10.0.1.1 0 -3 0 speed_10
 		chk_join_nr 3 3 3
 		chk_add_nr 3 3
 		chk_rm_nr 3 3 invert
@@ -2178,7 +2178,7 @@ remove_tests()
 		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
 		pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
 		pm_nl_set_limits $ns2 3 3
-		run_tests $ns1 $ns2 10.0.1.1 0 -3 0 slow
+		run_tests $ns1 $ns2 10.0.1.1 0 -3 0 speed_10
 		chk_join_nr 1 1 1
 		chk_add_nr 3 3
 		chk_rm_nr 3 1 invert