lspci: Use PCI_FILL_BRIDGE_BASES to detect if range behind bridge is disabled or...

lspci: Use PCI_FILL_BRIDGE_BASES to detect if range behind bridge is disabled or unsupported

Show resources behind bridge as reported by PCI_FILL_BRIDGE_BASES.

I/O or Prefetchable memory behind bridge is unsupported by bridge if both
base and limit bridge registers are read-only and returns zero. So if base
and limit registers returns zero (which is valid enabled range) and kernel
reports that particular resource is disabled it means that resource is
unsupported. Both I/O or Prefetchable memory resources are only optional.