ASoC: Intel: bytcr_rt5640/51: remove .ignore_suspend

Low-power playback was never enabled on Baytrail devices, remove what
looks like copy/paste from other machine drivers which were never
submitted upstream.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200526203640.25980-4-pierre-louis.bossart@linux.intel.com


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