UPSTREAM: fq: support filtering a given tin

Add to the FQ API a way to filter a given tin, in order to
remove frames that fulfil certain criteria according to a
filter function.

This will be used by mac80211 to remove frames belonging to
an AP VLAN interface that's being removed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Toke Hiland-Jrgensen <toke@toke.dk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
(cherry picked from commit 8c418b5b)

BUG=b:131197056
TEST=compile 4.14-gw kernel

Signed-off-by: Kan Yan <kyan@google.com>

Change-Id: I4977417e38dc7264416de3ab6de611e63aacb421
Reviewed-on: https://chromium-review.googlesource.com/1703101


Tested-by: Kan Yan <kyan@google.com>
Tested-by: Kan Yan <kyan@chromium.org>
Commit-Ready: Kan Yan <kyan@google.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Julan Hsu <julanhsu@google.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Kan Yan <kyan@chromium.org>