chrony: fix configuration of IPv6 client access

Fix the init script to allow access from IPv6 subnets of the interface
specified in allow section in /etc/config/chrony.

Fixes issue #7039.

Signed-off-by: Miroslav Lichvar <mlichvar0@gmail.com>

net/chrony/files/chronyd.init

@@ -36,8 +36,8 @@ handle_allow() {
 	elif [ "$wan6_iface" = "$iface" ]; then
 		echo allow ::/0
 	else
-		network_get_subnets subnets $iface || \
-			network_get_subnets subnets6 $iface || continue
+		network_get_subnets subnets $iface
+		network_get_subnets6 subnets6 $iface
 		for subnet in $subnets $subnets6; do
 			echo allow $subnet
 		done