mx6: fix weird formatting in imx6q-sabreauto.dts

Reported-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Stefano Babic <sbabic@denx.de>

arch/arm/dts/imx6q-sabreauto.dts

@@ -1,9 +1,9 @@
 /*
-    + * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2012 Freescale Semiconductor, Inc.
-    + * Copyright 2011 Linaro Ltd.
+ * Copyright 2011 Linaro Ltd.
-    + *
+ *
-    + * SPDX-License-Identifier:     GPL-2.0+
+ * SPDX-License-Identifier:     GPL-2.0+
-    + */
+ */
 
 /dts-v1/;