Bump src/hm9000

Bump cloudfoundry/hm-workspace:
  Alex Suraci and Onsi Fakhouri:
     Removed unnecessary coreos submodules ( Travis Failed: https://travis-ci.org/cloudfoundry/hm-workspace/builds/17425851 )
Bump src/hm9000

Bump cloudfoundry/hm-workspace:
  Alex Suraci and Onsi Fakhouri:
     re-add go-log and go-systemd dependencies ( Travis created: https://travis-ci.org/cloudfoundry/hm-workspace/builds/17429160 )