Fix start of SWUpdate with Web-App

Signed-off-by: Stefano Babic <sbabic@denx.de>

recipes-support/swupdate/swupdate/swupdate

@@ -57,7 +57,7 @@ do_start() {
 	*)
 		echo "Starting $DESC ..."
 		cd /home/root
-		exec $DAEMON -v -w "-document_root /www" $SWUPDATE_EXTRA_ARGS &
+		exec $DAEMON -v -w "-r /www" $SWUPDATE_EXTRA_ARGS &
 		exit 0
 		;;
 	esac

recipes-support/swupdate/swupdate/swupdate.service

@@ -6,7 +6,7 @@ Documentation=https://sbabic.github.io/swupdate
 [Service]
 ExecStartPre=-/usr/bin/swupdate-env
 EnvironmentFile=-/tmp/swupdate.env
-ExecStart=/usr/bin/swupdate -v -w "-document_root /www" $SWUPDATE_EXTRA_ARGS
+ExecStart=/usr/bin/swupdate -v -w "-r /www" $SWUPDATE_EXTRA_ARGS
 
 [Install]
 WantedBy=multi-user.target