Move pf_key socket creation permission to netd

Allow netd to trigger the kernel synchronize rcu with open and close
pf_key socket. This action was previously done by system_server but now
it need to be done by netd instead because there might be race issue
when netd is operating on a map that is cleaned up by system server.

Bug: 126620214
Test: android.app.usage.cts.NetworkUsageStatsTest
      android.net.cts.TrafficStatsTest

Change-Id: Id5ca86aa4610e37a2752709ed9cfd4536ea3bfaf
2 files changed