Right now we set explict base addresses for the PCI IO regions in the VMware
VGA device. We don't register the second region at all and instead directly
map the physical memory.
The problem is, the addresses we're setting in the BAR is not taken into
account in the e820 mapping.
This patch removes the explicit BARs and registers the second region through
the normal PCI code.
I've only tested with a Linux guest and the open source VMware VGA driver.
This patch needs -p2 to apply against the QEMU CVS tree.