ASoC: soc-ops: cleanup cppcheck warning at snd_soc_put_xr_sx()

This patch cleanups below cppcheck warning.

sound/soc/soc-ops.c:859:18: style: The scope of the variable 'regval' can be reduced. [variableScope]
 unsigned int i, regval, regmask;
                 ^
sound/soc/soc-ops.c:859:26: style: The scope of the variable 'regmask' can be reduced. [variableScope]
 unsigned int i, regval, regmask;
                         ^
sound/soc/soc-ops.c:860:6: style: The scope of the variable 'err' can be reduced. [variableScope]
 int err;
     ^
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zgtzunoz.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-ops.c

@@ -856,17 +856,16 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 	unsigned long mask = (1UL<<mc->nbits)-1;
 	long max = mc->max;
 	long val = ucontrol->value.integer.value[0];
-	unsigned int i, regval, regmask;
-	int err;
+	unsigned int i;
 
 	if (invert)
 		val = max - val;
 	val &= mask;
 	for (i = 0; i < regcount; i++) {
-		regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
-		regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
-		err = snd_soc_component_update_bits(component, regbase+i,
-				regmask, regval);
+		unsigned int regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
+		unsigned int regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
+		int err = snd_soc_component_update_bits(component, regbase+i,
+							regmask, regval);
 		if (err < 0)
 			return err;
 	}