Update Centos nodes

Update to a newer image since the one being
used previously was too old and not based on the latest
common-packer.

Change-Id: Ic7f060b89a44d4817c4739c6f2b2faa563bd281a
Issue-ID: CIMAN-34
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
4 files changed