ciao-cli: Fix workload yaml parsing
ciao-cli: Fix workload yaml parsing

As the yaml tags were missing on the source struct the source type for
the source was not being correctly parsed from the yaml file.

Fixes: #1027

Signed-off-by: Rob Bradford <c49e1dc14cd52e2644816db47123896e0ac79025@intel.com>

matthewrsj/ciao,obedmr/ciao,kaccardi/ciao,mcastelino/ciao,matthewrsj/ciao,ciao-project/ciao,obedmr/ciao,mcastelino/ciao,obedmr/ciao,tpepper/ciao,wcwxyz/ciao,mrkz/ciao,kaccardi/ciao,matthewrsj/ciao,01org/ciao,tpepper/ciao,rbradford/ciao,wcwxyz/ciao,wcwxyz/ciao,erick0z/ciao,mrkz/ciao,erick0z/ciao,mrkz/ciao,01org/ciao,markdryan/ciao,tpepper/ciao,mcastelino/ciao,ciao-project/ciao,markdryan/ciao,erick0z/ciao,rbradford/ciao