NetlinkListenerTest.TestSkDestroyError - deflake attempt nr 2.

Hopefully this will get rid of:
  08-16 14:22:29 I/ModuleListener: [1/1] VtsKernelNetdTest#NetlinkListenerTest.TestSkDestroyError_32bit fail:
  system/netd/tests/netlink_listener_test.cpp:136
  Expected: (0) < (rxErrorCount), actual: 0 vs 0

Which I've received complaint mail about.

Test: builds, atest netd_unit_test netd_integration_test
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ibb6b4d5e5a14024192b03c8d1e8a5737b2f90671
Merged-In: Ibb6b4d5e5a14024192b03c8d1e8a5737b2f90671
(cherry picked from commit cf6f710b67a8a5f35d47b2b20fee61395f79236d)
diff --git a/tests/netlink_listener_test.cpp b/tests/netlink_listener_test.cpp
index b39182c..901c1d0 100644
--- a/tests/netlink_listener_test.cpp
+++ b/tests/netlink_listener_test.cpp
@@ -153,5 +153,5 @@
 TEST_F(NetlinkListenerTest, TestSkDestroyError) {
     SKIP_IF_BPF_NOT_SUPPORTED;
 
-    checkMassiveSocketDestroy(20000, true);
+    checkMassiveSocketDestroy(50000, true);
 }