avahi: upgraded package to upstream

Upgraded net-dns/avahi to version 0.6.31-r4 on amd64, arm, x86

This pulls in a patch that lets avahi-daemon startup when
misdetecting SO_REUSEADDR support in the kernel.

BUG=chromium:342147
TEST=emerge-x86-alex avahi works
TEST=emerge-stumpy avahi works
TEST=emerge-daisy avahi works

Change-Id: I26f520d10dd47a24b9576719da9227b7c166d12f
Reviewed-on: https://chromium-review.googlesource.com/185609
Reviewed-by: David Zeuthen <zeuthen@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Gaurav Shah <gauravsh@chromium.org>
Tested-by: Gaurav Shah <gauravsh@chromium.org>
10 files changed