handle the posibility that CCO will have no static pod definition

When disabling CCO, the bootstrap-manifests dir will be empty which will error bootkube.sh.

Skip tyring to copy an empty directory by detecting whether the static pod manifest was rendered (the directory should always exist starting with openshift/cloud-credential-operator#175 ).

data/data/bootstrap/files/usr/local/bin/bootkube.sh.template

@@ -351,7 +351,10 @@ then
 			--cloud-credential-operator-image=${CLOUD_CREDENTIAL_OPERATOR_IMAGE}
 
 	cp cco-bootstrap/manifests/* manifests/
-	cp cco-bootstrap/bootstrap-manifests/* bootstrap-manifests/
+	# skip copy if static pod manifest does not exist (ie CCO has been disabled)
+	if [ -f cco-bootstrap/bootstrap-manifests/cloud-credential-operator-pod.yaml ]; then
+		cp cco-bootstrap/bootstrap-manifests/* bootstrap-manifests/
+	fi
 
 	touch cco-bootstrap.done
 fi