Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/arch/powerpc/cpu/ppc4xx/sdram.c b/arch/powerpc/cpu/ppc4xx/sdram.c
index 2d95bc5..d4ef36d 100644
--- a/arch/powerpc/cpu/ppc4xx/sdram.c
+++ b/arch/powerpc/cpu/ppc4xx/sdram.c
@@ -8,7 +8,7 @@
  * (C) Copyright 2002-2004
  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>