Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/video_ad7176.h b/include/video_ad7176.h
index 6447b15..6a0230e 100644
--- a/include/video_ad7176.h
+++ b/include/video_ad7176.h
@@ -2,7 +2,7 @@
  * (C) Copyright 2000
  * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _VIDEO_AD7176_H_