ceph: remove unexpected array type in crd schema for tests

Clean up an unexpected array type in the test schema for pre-k8s-1.16
clusters

Signed-off-by: Travis Nielsen <tnielsen@redhat.com>

cluster/examples/kubernetes/ceph/pre-k8s-1.16/crds.yaml

@@ -151,7 +151,6 @@ spec:
                               type: string
                             config: {}
                       resources: {}
-                  type: array
                 useAllDevices:
                   type: boolean
                 deviceFilter:

tests/framework/installer/ceph_manifests.go

@@ -1565,8 +1565,7 @@ spec:
                             name:
                               type: string
                             config: {}
-                resources: {}
-                  type: array
+                      resources: {}
                 useAllDevices:
                   type: boolean
                 deviceFilter: {}