omap1: Add initcall checks for omap1 and booted board

Otherwise multi-omap1 configurations will fail.

Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/mcbsp.c

@@ -176,6 +176,9 @@ static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
 
 static int __init omap1_mcbsp_init(void)
 {
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
 	if (cpu_is_omap7xx()) {
 		omap_mcbsp_count = OMAP7XX_MCBSP_PDATA_SZ;
 		omap_mcbsp_cache_size = OMAP7XX_MCBSP_REG_NUM * sizeof(u16);