ASoC: sunxi: sun8i-codec: clarify expression

cppcheck warning:

sound/soc/sunxi/sun8i-codec.c:488:28: style: Clarify calculation
precedence for '%' and '?'. [clarifyCalculation]
 return sample_rate % 4000 ? 22579200 : 24576000;
                           ^
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210326215927.936377-12-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sunxi/sun8i-codec.c

@@ -485,7 +485,7 @@ static int sun8i_codec_get_lrck_div_order(unsigned int slots,
 
 static unsigned int sun8i_codec_get_sysclk_rate(unsigned int sample_rate)
 {
-	return sample_rate % 4000 ? 22579200 : 24576000;
+	return (sample_rate % 4000) ? 22579200 : 24576000;
 }
 
 static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,