Add CI jobs for Train stable branches

Also makes Rocky jobs non-voting and non-gating, since these have become
N-3.

Change-Id: If20f4f035fb3ba757fa449160fe44efbcbe296ff
diff --git a/zuul.d/stable-jobs.yaml b/zuul.d/stable-jobs.yaml
index f553787..48246df 100644
--- a/zuul.d/stable-jobs.yaml
+++ b/zuul.d/stable-jobs.yaml
@@ -1,4 +1,9 @@
 - job:
+    name: ironic-standalone-train
+    parent: ironic-standalone
+    override-branch: stable/train
+
+- job:
     name: ironic-standalone-stein
     parent: ironic-standalone
     override-branch: stable/stein
@@ -21,6 +26,11 @@
         IRONIC_USE_MOD_WSGI: True
 
 - job:
+    name: ironic-tempest-functional-python3-train
+    parent: ironic-tempest-functional-python3
+    override-branch: stable/train
+
+- job:
     name: ironic-tempest-functional-python3-stein
     parent: ironic-tempest-functional-python3
     override-branch: stable/stein
@@ -37,6 +47,11 @@
         rabbit: True
 
 - job:
+    name: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode-train
+    parent: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode
+    override-branch: stable/train
+
+- job:
     name: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode-stein
     parent: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode
     override-branch: stable/stein
@@ -78,6 +93,15 @@
           OVS_BRIDGE_MAPPINGS: 'mynetwork:sub1brbm,public:br_ironic_vxlan'
 
 - job:
+    name: ironic-inspector-tempest-train
+    parent: ironic-inspector-tempest
+    override-branch: stable/train
+    vars:
+      devstack_localrc:
+        FIXED_NETWORK_SIZE: 4096
+        EBTABLES_RACE_FIX: True
+
+- job:
     name: ironic-inspector-tempest-stein
     parent: ironic-inspector-tempest
     override-branch: stable/stein
@@ -107,6 +131,11 @@
         EBTABLES_RACE_FIX: True
 
 - job:
+    name: ironic-inspector-tempest-discovery-train
+    parent: ironic-inspector-tempest-discovery
+    override-branch: stable/train
+
+- job:
     name: ironic-inspector-tempest-discovery-stein
     parent: ironic-inspector-tempest-discovery
     override-branch: stable/stein