libfmq: update from upstream

Followed instructions from go/nnapi-dep-instructions.

No manual changes / interventions have been made.

$ git merge cros/upstream/master --no-ff
$ repo upload --cbr . --no-verify

BUG=b:197814725
TEST=FEATURES=test emerge-amd64-generic nnapi aosp-frameworks-ml-nn

Change-Id: Ie62f1cc8e94e45fe6706e41ad6c72982b4198cfc