ASoC: mxs-saif: Add MODULE_ALIAS

Add MODULE_ALIAS information.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index aa037b2..93380cc 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -812,3 +812,4 @@
 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
 MODULE_DESCRIPTION("MXS ASoC SAIF driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mxs-saif");