Don't try to install file that doesn't exist

There is no /etc/storyboard in the repo, so we should not try to install it.
Instead, install the sample config file which we do have. Also, we'll be
managing the config file via config mgmt, so don't try to install the config
file to the actual location.

Change-Id: I9ff446df1a5662227d6235e1ca54c0eb7a9a142f