Fix problem with starting Windows 7 instances using VMware Driver

The default controller for a Windows 7 virtual machine is the
LSI Logic SAS. When the disk adapter type is specified as 'lsiLogic'
via glance image metadata, VMware driver defaults to LSI Logic Parallel
controller. With this fix the driver will honor a property 'lsiLogicsas'
to distinguish the right adapter and enable booting Windows instances.

Fixes: bug #1187853
Change-Id: Idb36a784a31e4938e8951adeb83335b3890dac85
Merge "Fix problem with starting Windows 7 instances using VMware Driver"