Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/common/env_nvram.c b/common/env_nvram.c
index 4914422..0866cde 100644
--- a/common/env_nvram.c
+++ b/common/env_nvram.c
@@ -5,7 +5,7 @@
  * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
  * Andreas Heppel <aheppel@sysgo.de>
 
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*