net-test: add test for SO_NETNS_COOKIE

Test: TreeHugger, manually ran net_test in uml
Bug: 274789652
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ic184be7b8b88eadd10f78ea93efcaf77ef6bc44d
2 files changed
tree: eea250ba2072dbf1549129394ed6cbc3e2597a6f
  1. net/
  2. METADATA