Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/mx31pdk.h b/include/configs/mx31pdk.h
index 69045da..d41f2cd 100644
--- a/include/configs/mx31pdk.h
+++ b/include/configs/mx31pdk.h
@@ -8,7 +8,7 @@
  *
  * Configuration settings for the Freescale i.MX31 PDK board.
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __CONFIG_H