sh: Add a dummy SH-4 PCIC fixup.

By default we don't have anything to fix up for the SH-4 PCIC, boards can
overload this as necessary.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/drivers/pci/ops-sh4.c

@@ -162,3 +162,9 @@ char * __init pcibios_setup(char *str)
 
 	return str;
 }
+
+int __attribute__((weak)) pci_fixup_pcic(void)
+{
+	/* Nothing to do. */
+	return 0;
+}