Update bosh release test
Update bosh release test

- does not change the expectation that we install the correct version of
nfs-common, just the pre-check of which version is over-written by the
correct version

Authored-by: Lisa Burns <53c7312eb9f02149a2ed58fc14d78d4142caa3c0@pivotal.io>

cloudfoundry-incubator/nfs-volume-release,cloudfoundry-incubator/nfs-volume-release,cloudfoundry-incubator/nfs-volume-release