ASoC: omap-mcbsp: Enable TX/RX under and overflow interrupts

FIFO under or overflow can cause channel swaps and data loss. Reporting
them can help to identify such events.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c
index 76ce331..06fec56 100644
--- a/sound/soc/omap/mcbsp.c
+++ b/sound/soc/omap/mcbsp.c
@@ -221,7 +221,8 @@
 
 	/* Enable TX/RX sync error interrupts by default */
 	if (mcbsp->irq)
-		MCBSP_WRITE(mcbsp, IRQEN, RSYNCERREN | XSYNCERREN);
+		MCBSP_WRITE(mcbsp, IRQEN, RSYNCERREN | XSYNCERREN |
+			    RUNDFLEN | ROVFLEN | XUNDFLEN | XOVFLEN);
 }
 
 /**