ASoC: sst_platform: trivial coding style fix

Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/mid-x86/sst_platform.c

@@ -469,7 +469,7 @@ static struct platform_driver sst_platform_driver = {
 static int __init sst_soc_platform_init(void)
 {
 	pr_debug("sst_soc_platform_init called\n");
-	return  platform_driver_register(&sst_platform_driver);
+	return platform_driver_register(&sst_platform_driver);
 }
 module_init(sst_soc_platform_init);