ASoC: fsl_ssi: Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index c6b7439..4973be7 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -748,7 +748,7 @@
 	fsl_ssi_setup(fsl_ac97_data);
 }
 
-void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
 		unsigned short val)
 {
 	struct ccsr_ssi *ssi = fsl_ac97_data->ssi;
@@ -770,7 +770,7 @@
 	udelay(100);
 }
 
-unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
+static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
 		unsigned short reg)
 {
 	struct ccsr_ssi *ssi = fsl_ac97_data->ssi;