PCI: x86: use generic pci_enable_resources()

Use the generic pci_enable_resources() instead of the arch-specific code.

Unlike this arch-specific code, the generic version:
    - checks for resource collisions with "!r->parent"

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 900e1a7..75fcc29 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -466,7 +466,7 @@
 {
 	int err;
 
-	if ((err = pcibios_enable_resources(dev, mask)) < 0)
+	if ((err = pci_enable_resources(dev, mask)) < 0)
 		return err;
 
 	if (!dev->msi_enabled)