Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/stx/stxssa/stxssa.c b/board/stx/stxssa/stxssa.c
index e69e266..c08a18b 100644
--- a/board/stx/stxssa/stxssa.c
+++ b/board/stx/stxssa/stxssa.c
@@ -9,7 +9,7 @@
  *
  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */