Rename keystone zuul jobs

Follow changes Ib7c8a2f1cfa19f332aad20ac528f8fa86addd5f9 and
If0d0db326f25a95f6a0c16f49c841a4db7cb6022 to rename the jobs
to the jobs in the keystone repository.

Change-Id: I0a9984642bafc0438c561948dc8bb49b248e5f72
diff --git a/.zuul.yaml b/.zuul.yaml
index d535893..5b42f96 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -4,9 +4,9 @@
       - tempest-plugin-jobs
     check:
       jobs:
-        - legacy-keystone-dsvm-functional
-        - legacy-keystone-dsvm-functional-v3-only:
+        - keystone-dsvm-functional
+        - keystone-dsvm-functional-federation:
             voting: false
     gate:
       jobs:
-        - legacy-keystone-dsvm-functional
+        - keystone-dsvm-functional