package/libnetfilter_conntrack: add libmnl to Libs.Private
This will fix a static build failure with dnsmasq on latest
libnetfilter_conntrack
Fixes:
- http://autobuild.buildroot.org/results/3fdc2cba20162eb86eaa5c49a056fb40fb18a392
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Tested-by: Baruch Siach <baruch@tkos.co.il>
[Peter: adjust upstream status as pointed out by Baruch]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 083dbf4cca7fd032ad07f3bde97422134b4e0b86)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>