ASoC: ak5558: Fix s/show/slow/ typo

s/show/slow/

Fixes: 92088477 ("ASoC: ak5558: Add support for AK5558 ADC driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1617458365-23393-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/ak5558.c

@@ -75,8 +75,8 @@ static const struct soc_enum ak5552_mono_enum[] = {
 };
 
 static const char * const digfil_texts[] = {
-	"Sharp Roll-Off", "Show Roll-Off",
-	"Short Delay Sharp Roll-Off", "Short Delay Show Roll-Off",
+	"Sharp Roll-Off", "Slow Roll-Off",
+	"Short Delay Sharp Roll-Off", "Short Delay Slow Roll-Off",
 };
 
 static const struct soc_enum ak5558_adcset_enum[] = {