ASoC: compress - fix code alignment

Reported-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Namarta Kohli <namartax.kohli@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>