Changed systemwide-executable to run in local_src_dir because the script needs
to build airshipctl binary first, before doc pull command can be invoked and populate
the remote_work_dir. Changed the order of the roles to allow systemwide-executable
to run before test-config and pull-docs.
Change-Id: Ia47423d91cdfb2dbbf0259344daab1c7b8cd47f5
Signed-off-by: James Gu <james.gu@att.com>