Add dependency so swift config creation succeeds

Introduce dependencies so swift config files are not created until
the swift packages are installed to avoid failures due to missing
directories, users, and groups supplied by the swift packages.

Change-Id: Ifbd7e9c4f0ecdef03c5afe8459216ddaeb849bb7
Closes-Bug: #1314772
Merge "Add dependency so swift config creation succeeds"