PCI: Inline the ATS setup code into pci_ats_init()

The ATS setup code in ats_alloc_one() is only used by pci_ats_init(), so
inline it there.  No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>

drivers/pci/ats.c

@@ -17,7 +17,7 @@
 
 #include "pci.h"
 
-static void ats_alloc_one(struct pci_dev *dev)
+void pci_ats_init(struct pci_dev *dev)
 {
 	int pos;
 	u16 cap;
@@ -32,11 +32,6 @@ static void ats_alloc_one(struct pci_dev *dev)
 					    PCI_ATS_MAX_QDEP;
 }
 
-void pci_ats_init(struct pci_dev *dev)
-{
-	ats_alloc_one(dev);
-}
-
 /**
  * pci_enable_ats - enable the ATS capability
  * @dev: the PCI device