AUTHORS: Remove whitespaces at end of line

Change-Id: I8445ac2e1bfca6cbf9d4d544318eec666948a8c4
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82623
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

Author: ElyesH

AUTHORS

@@ -224,7 +224,7 @@ Free Software Foundation, Inc.
 Freescale Semiconductor, Inc.
 Furquan Shaikh
 Gaggery Tsai
-Gang C Chen 
+Gang C Chen
 Garmin Chang
 Gary Jennejohn
 George Trudeau
@@ -769,7 +769,7 @@ Wojciech Macek
 Wolfgang Denk
 Won Chung
 Wonkyu Kim
-Wuxy 
+Wuxy
 Xiang W
 Xin Ji
 Xixi Chen