ASoC: rt5682: clarify expression

cppcheck warning:

sound/soc/codecs/rt5682.c:2401:65: style: Boolean result is used in
bitwise operation. Clarify expression with
parentheses. [clarifyCondition]
      (pll_code.m_bp ? 0 : pll_code.m_code) << RT5682_PLL_M_SFT |

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210302212527.55158-23-pierre-louis.bossart@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>