Update hwc-buildpack to v2.2.0
Update hwc-buildpack to v2.2.0

https://github.com/cloudfoundry-incubator/hwc-buildpack-release/releases/tag/v2.2.0
Signed-off-by: Amin Jamali <828117156edecfc83d6e458626bc6ccd219cba0e@pivotal.io>

emalm/cf-deployment,cloudfoundry/cf-deployment,cloudfoundry/cf-deployment