powerpc/pci: Hide pci_create_OF_bus_map() for non-chrp code

Function pci_create_OF_bus_map() is used only in chrp code.
So hide it from all other platforms.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220706104308.5390-4-pali@kernel.org

arch/powerpc/include/asm/pci-bridge.h

@@ -176,7 +176,9 @@ extern int pci_device_from_OF_node(struct device_node *node,
 #endif
 #ifndef CONFIG_PPC64
 
+#ifdef CONFIG_PPC_CHRP
 extern void pci_create_OF_bus_map(void);
+#endif
 
 #else	/* CONFIG_PPC64 */
 

arch/powerpc/kernel/pci_32.c

@@ -194,6 +194,7 @@ int pci_device_from_OF_node(struct device_node *node, u8 *bus, u8 *devfn)
 EXPORT_SYMBOL(pci_device_from_OF_node);
 #endif
 
+#ifdef CONFIG_PPC_CHRP
 /* We create the "pci-OF-bus-map" property now so it appears in the
  * /proc device tree
  */
@@ -218,6 +219,7 @@ pci_create_OF_bus_map(void)
 		of_node_put(dn);
 	}
 }
+#endif
 
 void pcibios_setup_phb_io_space(struct pci_controller *hose)
 {