ASoC: dapm: Allow update_bits use 32 bits reg

This patch change reg's type from unsigned short to int.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/soc-dapm.c

@@ -426,7 +426,7 @@ static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
 }
 
 static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
-	unsigned short reg, unsigned int mask, unsigned int value)
+	int reg, unsigned int mask, unsigned int value)
 {
 	bool change;
 	unsigned int old, new;