net-test: check pfkey socket creation still succeeds

(we still rely on this for bpf synchronization,
 for the side effect of close() causing a kernel rcu synchronization)

Test: TreeHugger, manually on UML
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I119a9c9761d82431c33108adb69ebdccd2a9ccac
1 file changed
tree: ff47c3a63d40b9ea8b321a13ea3b8a77eabc27e5
  1. net/
  2. METADATA