ASoC: fsl: constify of_device_id array

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index 08d2a80..0bab760 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -326,7 +326,7 @@
 }
 
 /* Match table for of_platform binding */
-static struct of_device_id psc_ac97_match[] = {
+static const struct of_device_id psc_ac97_match[] = {
 	{ .compatible = "fsl,mpc5200-psc-ac97", },
 	{ .compatible = "fsl,mpc5200b-psc-ac97", },
 	{}
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index 51fb0c0..d823294 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -217,7 +217,7 @@
 }
 
 /* Match table for of_platform binding */
-static struct of_device_id psc_i2s_match[] = {
+static const struct of_device_id psc_i2s_match[] = {
 	{ .compatible = "fsl,mpc5200-psc-i2s", },
 	{ .compatible = "fsl,mpc5200b-psc-i2s", },
 	{}
diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c
index c44459d..ec73122 100644
--- a/sound/soc/fsl/pcm030-audio-fabric.c
+++ b/sound/soc/fsl/pcm030-audio-fabric.c
@@ -113,7 +113,7 @@
 	return ret;
 }
 
-static struct of_device_id pcm030_audio_match[] = {
+static const struct of_device_id pcm030_audio_match[] = {
 	{ .compatible = "phytec,pcm030-audio-fabric", },
 	{}
 };