bump cfdot
bump cfdot

[finishes #158123378](https://www.pivotaltracker.com/story/show/158123378)

Submodule src/code.cloudfoundry.org/cfdot beab2a75..e72f99d3:
  > dedup desired lrp events

Signed-off-by: Sunjay Bhatia <df2d57be7987a471915f625a5499155bc16d4200@pivotal.io>

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