The collect tool is unnecessarily including temp subcloud
install iso files and related other large tmp files.
This update changes the raw 'cp ...' to 'rsync ...'
with the --exclude option to filter out iso files from the
the collect_dc and collect_sysinv collect scripts.
Change-Id: I3575c3193a24f376dcd006c3e5015c551023c69a
Closes-Bug: 1885778
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
7c076a390f