Merge remote-tracking branch 'sdm845/lineage-20' into lineage-21

* sdm845/lineage-20:
  UPSTREAM: af_unix: Fix garbage collector racing against connect()
  UPSTREAM: af_unix: Do not use atomic ops for unix_sk(sk)->inflight.

Change-Id: I84e175850e045027747b2023372238b4cf4783c1