fix service broker issue in ccng env

Change-Id: I266917d9f287d8b4e0448f2a657d57b85b9ea8d9
Signed-off-by: michael zhang <zhangcheng@rbcon.com>
Reviewed-on: http://reviews.cloudfoundry.org/13291
Tested-by: CI Master <cf-ci@rbcon.com>
Reviewed-by: Pin Xie <pxie@vmware.com>