Add multiple --vmwarevsphere-network flags so vm's can be multi-homed
Add multiple --vmwarevsphere-network flags so vm's can be multi-homed

Signed-off-by: Sven Dowideit <6f6969dc7db01e7204496bfb27e43d63ec4b2eb3@home.org.au>

SvenDowideit/machine,SvenDowideit/machine,Herbis/machine,ibuildthecloud/machine,londoncalling/machine,exoscale/docker-machine,dgageot/machine,voutilad/machine,docker/machine,dweomer/docker-machine,ibuildthecloud/machine,dgageot/machine,dweomer/docker-machine,Herbis/machine,voutilad/machine,docker/machine,londoncalling/machine,exoscale/docker-machine