PCI: export pci_claim_resource for driver use

yenta needs this for example.

Acked-by: Matthew Wilcox <willy@linux.intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 88cdd1a..706f82d 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -119,6 +119,7 @@
 
 	return err;
 }
+EXPORT_SYMBOL(pci_claim_resource);
 
 #ifdef CONFIG_PCI_QUIRKS
 void pci_disable_bridge_window(struct pci_dev *dev)