bump auction
bump auction

[finishes #152117760]

Submodule src/code.cloudfoundry.org/auction bf78a27..beb2eed:
  > remove verbose info log line

Signed-off-by: Chris Piraino <f047703f03f13cc8e1b226aa8ba85c2dfc238f94@pivotal.io>

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