ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support

We cannot include any plat or mach headers for the multiplatform
support.

Fix the issue by defining local mcbsp_omap1().

cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
cc: Liam Girdwood <lrg@ti.com>
cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
cc: Jaroslav Kysela <perex@perex.cz>
cc: Takashi Iwai <tiwai@suse.de>
cc: alsa-devel@alsa-project.org
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

sound/soc/omap/mcbsp.c

@@ -28,8 +28,6 @@
 
 #include <linux/platform_data/asoc-ti-mcbsp.h>
 
-#include <plat/cpu.h>
-
 #include "mcbsp.h"
 
 static void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
@@ -612,7 +610,7 @@ void omap_mcbsp_free(struct omap_mcbsp *mcbsp)
 	 * system will refuse to enter idle if the CLKS pin source is not reset
 	 * back to internal source.
 	 */
-	if (!cpu_class_is_omap1())
+	if (!mcbsp_omap1())
 		omap2_mcbsp_set_clks_src(mcbsp, MCBSP_CLKS_PRCM_SRC);
 
 	spin_lock(&mcbsp->lock);

sound/soc/omap/mcbsp.h

@@ -26,6 +26,12 @@
 
 #include "omap-pcm.h"
 
+#ifdef CONFIG_ARCH_OMAP1
+#define mcbsp_omap1()	1
+#else
+#define mcbsp_omap1()	0
+#endif
+
 /* McBSP register numbers. Register address offset = num * reg_step */
 enum {
 	/* Common registers */

sound/soc/omap/omap-mcbsp.c

@@ -34,7 +34,6 @@
 #include <sound/initval.h>
 #include <sound/soc.h>
 
-#include <plat/cpu.h>
 #include <linux/platform_data/asoc-ti-mcbsp.h>
 #include "mcbsp.h"
 #include "omap-mcbsp.h"
@@ -512,15 +511,15 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 		regs->srgr2	|= CLKSM;
 		break;
 	case OMAP_MCBSP_SYSCLK_CLKS_FCLK:
-		if (cpu_class_is_omap1()) {
+		if (mcbsp_omap1()) {
 			err = -EINVAL;
 			break;
 		}
 		err = omap2_mcbsp_set_clks_src(mcbsp,
 					       MCBSP_CLKS_PRCM_SRC);
 		break;
 	case OMAP_MCBSP_SYSCLK_CLKS_EXT:
-		if (cpu_class_is_omap1()) {
+		if (mcbsp_omap1()) {
 			err = 0;
 			break;
 		}