ASoC: davicni-mcasp: Mark the common irq line as shared

On DA830 devices McASP0,1 and 2 shares a single combined interrupt request
line.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 95eef58..a5e4fe0 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1461,7 +1461,8 @@
 					  dev_name(&pdev->dev));
 		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
 						davinci_mcasp_common_irq_handler,
-						IRQF_ONESHOT, irq_name, mcasp);
+						IRQF_ONESHOT | IRQF_SHARED,
+						irq_name, mcasp);
 		if (ret) {
 			dev_err(&pdev->dev, "common IRQ request failed\n");
 			goto err;