miniupnpd: add missing dependencies

Fixes the build problem below.

Package miniupnpd is missing dependencies for the following libraries:
libmnl.so.0
libnetfilter_conntrack.so.3

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

net/miniupnpd/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=miniupnpd
 PKG_VERSION:=2.2.1
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE_URL:=https://miniupnp.tuxfamily.org/files
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
@@ -35,6 +35,8 @@ define Package/miniupnpd/Default
 	+iptables \
 	+libcap-ng \
 	+libip4tc \
+	+libmnl \
+	+libnetfilter-conntrack \
 	+libuuid
   TITLE:=Lightweight UPnP IGD, NAT-PMP & PCP daemon
   SUBMENU:=Firewall