Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/iphase4539/flash.c b/board/iphase4539/flash.c
index d3122ed..3c2dad6 100644
--- a/board/iphase4539/flash.c
+++ b/board/iphase4539/flash.c
@@ -7,7 +7,7 @@
  *
  * Adapted for Interphase 4539 by Wolfgang Grandegger <wg@denx.de>.
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>