ASoC: ux500: Remove unuseful break after return

This was reported by checkpatch.pl

Signed-off-by: Codrut GROSU <codrut.cristian.grosu@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/ux500/ux500_msp_i2s.c

@@ -604,7 +604,6 @@ int ux500_msp_i2s_trigger(struct ux500_msp *msp, int cmd, int direction)
 		break;
 	default:
 		return -EINVAL;
-		break;
 	}
 
 	return 0;