PCI/ATS: Make pci_restore_pri_state(), pci_restore_pasid_state() private

These interfaces:

  void pci_restore_pri_state(struct pci_dev *pdev);
  void pci_restore_pasid_state(struct pci_dev *pdev);

are only used in drivers/pci and do not need to be seen by the rest of the
kernel.  Most them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>

drivers/pci/pci.h

@@ -458,14 +458,18 @@ static inline void pci_restore_ats_state(struct pci_dev *dev) { }
 
 #ifdef CONFIG_PCI_PRI
 void pci_pri_init(struct pci_dev *dev);
+void pci_restore_pri_state(struct pci_dev *pdev);
 #else
 static inline void pci_pri_init(struct pci_dev *dev) { }
+static inline void pci_restore_pri_state(struct pci_dev *pdev) { }
 #endif
 
 #ifdef CONFIG_PCI_PASID
 void pci_pasid_init(struct pci_dev *dev);
+void pci_restore_pasid_state(struct pci_dev *pdev);
 #else
 static inline void pci_pasid_init(struct pci_dev *dev) { }
+static inline void pci_restore_pasid_state(struct pci_dev *pdev) { }
 #endif
 
 #ifdef CONFIG_PCI_IOV

include/linux/pci-ats.h

@@ -23,21 +23,16 @@ static inline int pci_ats_page_aligned(struct pci_dev *dev)
 #ifdef CONFIG_PCI_PRI
 int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
 void pci_disable_pri(struct pci_dev *pdev);
-void pci_restore_pri_state(struct pci_dev *pdev);
 int pci_reset_pri(struct pci_dev *pdev);
 int pci_prg_resp_pasid_required(struct pci_dev *pdev);
-#else /* CONFIG_PCI_PRI */
-static inline void pci_restore_pri_state(struct pci_dev *pdev) { }
 #endif /* CONFIG_PCI_PRI */
 
 #ifdef CONFIG_PCI_PASID
 int pci_enable_pasid(struct pci_dev *pdev, int features);
 void pci_disable_pasid(struct pci_dev *pdev);
-void pci_restore_pasid_state(struct pci_dev *pdev);
 int pci_pasid_features(struct pci_dev *pdev);
 int pci_max_pasids(struct pci_dev *pdev);
 #else /* CONFIG_PCI_PASID */
-static inline void pci_restore_pasid_state(struct pci_dev *pdev) { }
 static inline int pci_pasid_features(struct pci_dev *pdev)
 { return -EINVAL; }
 static inline int pci_max_pasids(struct pci_dev *pdev)