Run ironic-inspector discovery jobs in the CI

These jobs have a separate set of scenario tests.

Depends-On: I69d91ac4b00dabfd917f097d70f0b38e0a4fc4c6
Change-Id: If1788fc1edd98c3d909f39d50a85c598594e6fc8
diff --git a/zuul.d/stable-jobs.yaml b/zuul.d/stable-jobs.yaml
index 7a9150a..5b51164 100644
--- a/zuul.d/stable-jobs.yaml
+++ b/zuul.d/stable-jobs.yaml
@@ -38,3 +38,18 @@
     name: ironic-tempest-dsvm-ironic-inspector-ocata
     parent: ironic-tempest-dsvm-ironic-inspector
     override-checkout: stable/ocata
+
+- job:
+    name: ironic-inspector-tempest-dsvm-discovery-queens
+    parent: ironic-inspector-tempest-dsvm-discovery
+    override-checkout: stable/queens
+
+- job:
+    name: ironic-inspector-tempest-dsvm-discovery-pike
+    parent: ironic-inspector-tempest-dsvm-discovery
+    override-checkout: stable/pike
+
+- job:
+    name: ironic-inspector-tempest-dsvm-discovery-ocata
+    parent: ironic-inspector-tempest-dsvm-discovery
+    override-checkout: stable/ocata