have baggageclaim always mount on ephemeral disk
have baggageclaim always mount on ephemeral disk

[#105792092]

Signed-off-by: Toby Rumans <516e7840355d33b790e9dc5c111fe7c7c270a08f@pivotal.io>

cjcjameson/concourse,zachgersh/concourse,cjcjameson/concourse,concourse/concourse,concourse/concourse,concourse/concourse,cjcjameson/concourse,concourse/concourse,zachgersh/concourse,concourse/concourse,zachgersh/concourse