[POWERPC] 4xx: libfdt and pci fixes for Rainier

Update the Rainier wrapper for the libfdt merge and add the pci flags to the
platform file.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

arch/powerpc/boot/cuboot-rainier.c

@@ -51,6 +51,6 @@ void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	CUBOOT_INIT();
 	platform_ops.fixups = rainier_fixups;
 	platform_ops.exit = ibm44x_dbcr_reset;
-	ft_init(_dtb_start, 0, 32);
+	fdt_init(_dtb_start);
 	serial_console_init();
 }