The PCI core provides a generic pcibios_setup() routine.  Drop this
architecture-specific version in favor of that.
Acked-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NMyron Stowe <myron.stowe@redhat.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>