Fix idempotency issue in 'prepare-docker' role

This adds 'creates' arg to 'command' module used in
the role scope.

Change-Id: Ib500680114fb267cc08ab52f09fa691738ea4a1a
Issue-ID: OOM-1850
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
1 file changed