Updated openstack/openstack
Project: openstack/nova  1643c06ba77be83b8b0b997f89efb2395499e94a
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VMware: boot from iso support

The code enables the VMware driver to boot from an ISO
image.

Implements blueprint vmware-iso-boot

Change-Id: I568df99d6530f898d5a1885256604cf050b33dba