dch-root-ca: Disable hash name suffix

The contents of the DCH Root CA will not change, so it does not make
sense to enable the hash suffix feature for this ConfigMap.  Without it,
the ConfigMap name is predictable and can be used outside of a Kustomize
project.

dch-root-ca/kustomization.yaml

@@ -5,3 +5,5 @@ configMapGenerator:
 - name: dch-root-ca
   files:
   - dch-root-ca.crt
+  options:
+    disableNameSuffixHash: true