omap2/3: Fix initcalls for multi-omap

Otherwise the wrong initcalls can run.

Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/emu.c

@@ -56,6 +56,9 @@ static struct amba_device omap3_etm_device = {
 
 static int __init emu_init(void)
 {
+	if (!cpu_is_omap34xx())
+		return -ENODEV;
+
 	amba_device_register(&omap3_etb_device, &iomem_resource);
 	amba_device_register(&omap3_etm_device, &iomem_resource);