Check app workload in juju_epc
Check app workload in juju_epc

It avoids interpreting rsync errors in case of deployment failures.
Mysql is still unchecked.

Change-Id: I01b4470b86637d0fc322c422f05240a928305158
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,opnfv/functest