ARM: sa11x0: convert set_xxx_data() to register_xxx()

Only register devices if we have platform data for those which require
platform data.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-sa1100/hackkit.c

@@ -187,7 +187,7 @@ static struct resource hackkit_flash_resource = {
 
 static void __init hackkit_init(void)
 {
-	sa11x0_set_flash_data(&hackkit_flash_data, &hackkit_flash_resource, 1);
+	sa11x0_register_mtd(&hackkit_flash_data, &hackkit_flash_resource, 1);
 }
 
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