Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/w7o/post1.S b/board/w7o/post1.S
index 8a1b9e6..7a411a4 100644
--- a/board/w7o/post1.S
+++ b/board/w7o/post1.S
@@ -4,7 +4,7 @@
  *  and
  * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * Description: