tests: fixed "dhcpv6 : 1 HV, 2 LS, 5 LSPs" and "external logical port"

ovs-ofctl monitor runs by default for OVS_CTL_TIMEOUT i.e. 30 seconds
This might not be enough to cover the duration of the test on loaded systems.

Signed-off-by: Xavier Simonart <xsimonar@redhat.com>
Acked-by: Ales Musil <amusil@redhat.com>
Signed-off-by: Dumitru Ceara <dceara@redhat.com>

tests/ovn.at

@@ -7357,7 +7357,7 @@ test_dhcpv6() {
 }
 
 AT_CAPTURE_FILE([ofctl_monitor0.log])
-as hv1 ovs-ofctl monitor br-int resume --detach --no-chdir \
+as hv1 ovs-ofctl monitor br-int resume --timeout=120 --detach --no-chdir \
 --pidfile=ovs-ofctl0.pid 2> ofctl_monitor0.log
 
 echo "---------NB dump-----"
@@ -19760,15 +19760,15 @@ test_dhcpv6() {
 }
 
 AT_CAPTURE_FILE([ofctl_monitor0_hv1.log])
-as hv1 ovs-ofctl monitor br-int resume --detach --no-chdir \
+as hv1 ovs-ofctl monitor br-int resume --timeout=120 --detach --no-chdir \
 --pidfile=ovs-ofctl0.pid 2> ofctl_monitor0_hv1.log
 
 AT_CAPTURE_FILE([ofctl_monitor0_hv2.log])
-as hv2 ovs-ofctl monitor br-int resume --detach --no-chdir \
+as hv2 ovs-ofctl monitor br-int resume --timeout=120 --detach --no-chdir \
 --pidfile=ovs-ofctl0.pid 2> ofctl_monitor0_hv2.log
 
 AT_CAPTURE_FILE([ofctl_monitor0_hv3.log])
-as hv3 ovs-ofctl monitor br-int resume --detach --no-chdir \
+as hv3 ovs-ofctl monitor br-int resume --timeout=120 --detach --no-chdir \
 --pidfile=ovs-ofctl0.pid 2> ofctl_monitor0_hv3.log
 
 as hv1