west: runners: mdb-hw: add hostlink-awareness

Add hostlink-awareness to mdb-hw runner. The mdb-nsim and arc-nsim
runners (as well as cmake scripting for nSIM boards) doesn't require
any changes.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>