add csi plugin mount root path to the list of paths to bind mount into the rep bpm container [#159532103](https://www.pivotaltracker.com/story/show/159532103)
add csi plugin mount root path to the list of paths to bind mount into the rep bpm container [#159532103](https://www.pivotaltracker.com/story/show/159532103)

cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release