Add update weekly or daily

At present, it is only updated daily, and under normal circumstances, the data updated daily is not large, so the addition can be updated weekly or daily.

package/openwrt/files/etc/init.d/smartdns

@@ -260,13 +260,13 @@ disable_auto_update()
 
 enable_auto_update()
 {
-	grep "0 $auto_update_day_time * * * /etc/init.d/smartdns updatefiles" /etc/crontabs/root 2>/dev/null
+	grep "0 $auto_update_day_time * * $auto_update_week_time /etc/init.d/smartdns updatefiles" /etc/crontabs/root 2>/dev/null
 	if [ $? -eq 0 ]; then
 		return 
 	fi
 
 	disable_auto_update 1
-	echo "0 $auto_update_day_time * * * /etc/init.d/smartdns updatefiles" >> /etc/crontabs/root
+	echo "0 $auto_update_day_time * * $auto_update_week_time /etc/init.d/smartdns updatefiles" >> /etc/crontabs/root
 	restart_crond
 }
 
@@ -501,6 +501,7 @@ load_service()
 	config_get tcp_server "$section" "tcp_server" "1"
 	config_get server_flags "$section" "server_flags" ""
 
+	config_get auto_update_week_time "$section" "auto_update_week_time" "*"
 	config_get auto_update_day_time "$section" "auto_update_day_time" "5"
 
 	config_get speed_check_mode "$section" "speed_check_mode" ""