powerpc/powernv: Make pnv_pci_sriov_enable() and friends static

The kernel test robot noticed these are non-static which causes Clang to
print some warnings. These are called via ppc_md function pointers so
there's no need for them to be non-static.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200705133557.443607-1-oohall@gmail.com

arch/powerpc/platforms/powernv/pci-ioda.c

@@ -1490,7 +1490,7 @@ static void pnv_ioda_release_vf_PE(struct pci_dev *pdev)
 	}
 }
 
-void pnv_pci_sriov_disable(struct pci_dev *pdev)
+static void pnv_pci_sriov_disable(struct pci_dev *pdev)
 {
 	struct pci_bus        *bus;
 	struct pci_controller *hose;
@@ -1600,7 +1600,7 @@ static void pnv_ioda_setup_vf_PE(struct pci_dev *pdev, u16 num_vfs)
 	}
 }
 
-int pnv_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
+static int pnv_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
 {
 	struct pci_bus        *bus;
 	struct pci_controller *hose;
@@ -1715,7 +1715,7 @@ int pnv_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
 	return ret;
 }
 
-int pnv_pcibios_sriov_disable(struct pci_dev *pdev)
+static int pnv_pcibios_sriov_disable(struct pci_dev *pdev)
 {
 	pnv_pci_sriov_disable(pdev);
 
@@ -1724,7 +1724,7 @@ int pnv_pcibios_sriov_disable(struct pci_dev *pdev)
 	return 0;
 }
 
-int pnv_pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
+static int pnv_pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
 {
 	/* Allocate PCI data */
 	add_sriov_vf_pdns(pdev);