Redundant router: Fix wrong log attend to keepalived.log

If something got wrong with passwd_server_ip script, it would output to
keepalived.log, thus cause other scripts malfunctional.

Also make savepassword.sh using the same lock as serve_password.sh.

patches/systemvm/debian/config/opt/cloud/bin/passwd_server

@@ -19,5 +19,5 @@
 ips=$(ip addr show dev eth0 | grep inet | grep eth0 | awk '{print $2}' ); echo $ips
 for ip in $ips; do
 	addr=$(echo $ip | awk -F'/' '{print $1}')
-	/opt/cloud/bin/passwd_server_ip $addr &
+	/opt/cloud/bin/passwd_server_ip $addr >> /var/log/cloud.log 2>&1 &
 done;

patches/systemvm/debian/config/root/savepassword.sh

@@ -24,7 +24,7 @@
 
 source /root/func.sh
 
-lock="biglock"
+lock="passwdlock"
 locked=$(getLockFile $lock)
 if [ "$locked" != "1" ]
 then