Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/netphone/netphone.c b/board/netphone/netphone.c
index 053bdf1..8ff4489 100644
--- a/board/netphone/netphone.c
+++ b/board/netphone/netphone.c
@@ -3,7 +3,7 @@
  * Pantelis Antoniou, Intracom S.A., panto@intracom.gr
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*