Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/arch/powerpc/include/asm/apm821xx.h b/arch/powerpc/include/asm/apm821xx.h
index 11c06a2..d027866 100644
--- a/arch/powerpc/include/asm/apm821xx.h
+++ b/arch/powerpc/include/asm/apm821xx.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2010, Applied Micro Circuits Corporation
  * Author: Tirumala R Marri <tmarri@apm.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _APM821XX_H_