vxlan: properly handle LOOSE_COMPARISON in ->io_compare
vxlan: properly handle LOOSE_COMPARISON in ->io_compare

This lets us match links only on the attributes that have actually been
set, instead of comparing all attributes.

Signed-off-by: Sabrina Dubroca <4452d71687b6bc2c9389c3349fdc17fbd73b833b@queasysnail.net>
Signed-off-by: Thomas Haller <16e26612e4159990a6b3691e92592e691ff74132@redhat.com>

tklauser/libnl,HolyShitMan/libnl-1,greearb/libnl-ct,thom311/libnl,tklauser/libnl,HolyShitMan/libnl-1,thom311/libnl,HolyShitMan/libnl-1,tklauser/libnl,thom311/libnl,dsahern/libnl,dsahern/libnl,tklauser/libnl,HolyShitMan/libnl-1,greearb/libnl-ct,dsahern/libnl,dsahern/libnl,greearb/libnl-ct