ASoC: omap-mcbsp: Enable FIFO usage on OMAP4

Allow McBSP FIFO configuration from ASoC dai driver
on OMAP4 platform.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index bd11d256..0173719 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -258,7 +258,7 @@
 	default:
 		return -EINVAL;
 	}
-	if (cpu_is_omap34xx()) {
+	if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
 		dma_data->set_threshold = omap_mcbsp_set_threshold;
 		/* TODO: Currently, MODE_ELEMENT == MODE_FRAME */
 		if (omap_mcbsp_get_dma_op_mode(bus_id) ==