ASoC: Intel: bdw_rt286: Update code indentation

ASoC: Intel: bdw_rt286: Update code indentation

Make use of 100 character limit and modify indentation so code is easier
to read. While at it, sort includes in alphabetical order.

While at it, rename local variable 'chan' to 'channels' to match
hsw_rt5640 board's equivalent.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220620101402.2684366-12-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>