Temporary turn off l3_ha in ovs/lb master/bobcat jobs

Tests fails randomly with l3_ha in openvswitch and
linuxbridge master and stable/2023.2 jobs, until the
issue is fixed let's turn off l3_ha temporary.

Related-Bug: #2037239
Change-Id: Ia23b39819834e2bc12ec7113bb841007f7cf1ff5
diff --git a/zuul.d/train_jobs.yaml b/zuul.d/train_jobs.yaml
index 159feb2..5b1d354 100644
--- a/zuul.d/train_jobs.yaml
+++ b/zuul.d/train_jobs.yaml
@@ -154,6 +154,9 @@
             DEFAULT:
               # NOTE(slaweq): on Bionic keepalived doesn't knows this option yet
               keepalived_use_no_track: False
+          $NEUTRON_CONF:
+            DEFAULT:
+              l3_ha: true
         test-config:
           $TEMPEST_CONFIG:
             network-feature-enabled:
@@ -188,6 +191,9 @@
             DEFAULT:
               # NOTE(slaweq): on Bionic keepalived don't knows this option yet
               keepalived_use_no_track: False
+          $NEUTRON_CONF:
+            DEFAULT:
+              l3_ha: true
         test-config:
           $TEMPEST_CONFIG:
             network-feature-enabled:
@@ -222,6 +228,9 @@
             DEFAULT:
               # NOTE(slaweq): on Bionic keepalived don't knows this option yet
               keepalived_use_no_track: False
+          $NEUTRON_CONF:
+            DEFAULT:
+              l3_ha: true
         test-config:
           $TEMPEST_CONFIG:
             network-feature-enabled: