ASoC: Intel: skl_nau88l25_max98357a: rename shadowed variable

Fix cppcheck warning:

[sound/soc/intel/boards/skl_nau88l25_max98357a.c:257] ->
[sound/soc/intel/boards/skl_nau88l25_max98357a.c:142]: (style) Local
variable 'channels' shadows outer variable

[sound/soc/intel/boards/skl_nau88l25_max98357a.c:257] ->
[sound/soc/intel/boards/skl_nau88l25_max98357a.c:318]: (style) Local
variable 'channels' shadows outer variable
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113210428.27457-14-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/skl_nau88l25_max98357a.c

@@ -139,13 +139,13 @@ static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
 {
 	struct snd_interval *rate = hw_param_interval(params,
 			SNDRV_PCM_HW_PARAM_RATE);
-	struct snd_interval *channels = hw_param_interval(params,
+	struct snd_interval *chan = hw_param_interval(params,
 			SNDRV_PCM_HW_PARAM_CHANNELS);
 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 
 	/* The ADSP will covert the FE rate to 48k, stereo */
 	rate->min = rate->max = 48000;
-	channels->min = channels->max = 2;
+	chan->min = chan->max = 2;
 
 	/* set SSP0 to 24 bit */
 	snd_mask_none(fmt);
@@ -315,13 +315,13 @@ static const struct snd_soc_ops skylake_nau8825_ops = {
 static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 		struct snd_pcm_hw_params *params)
 {
-	struct snd_interval *channels = hw_param_interval(params,
+	struct snd_interval *chan = hw_param_interval(params,
 				SNDRV_PCM_HW_PARAM_CHANNELS);
 
 	if (params_channels(params) == 2 || DMIC_CH(dmic_constraints) == 2)
-		channels->min = channels->max = 2;
+		chan->min = chan->max = 2;
 	else
-		channels->min = channels->max = 4;
+		chan->min = chan->max = 4;
 
 	return 0;
 }