package/network-manager: set "nft" path if BR2_PACKAGE_NFTABLES=y

Nftables should be preferred over iptables if available, which
NetworkManager will do if both paths are set.

Signed-off-by: Fiona Klute (WIWA) <fiona.klute@gmx.de>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/network-manager/network-manager.mk

@@ -131,6 +131,10 @@ else
 NETWORK_MANAGER_CONF_OPTS += -Dnmtui=false
 endif
 
+ifeq ($(BR2_PACKAGE_NFTABLES),y)
+NETWORK_MANAGER_CONF_OPTS += -Dnft=/usr/sbin/nft
+endif
+
 ifeq ($(BR2_PACKAGE_OFONO),y)
 NETWORK_MANAGER_DEPENDENCIES += ofono
 NETWORK_MANAGER_CONF_OPTS += -Dofono=true