Set OVS max revalidator delay to 200ms

[antoninbas]

The default value (500ms) causes a K8s upstream conformance test to fail
and may increase the risk of users reporting issues if they think
SessionAffinity is not implemented properly. Of course there is still a
delay before a learned flow is installed in the datapath flow cache and
takes effect, but the delay is at least smaller now. This delay cannot
be avoided when using the learn action.

Reducing the delay to 200ms may have an impact on performance with a
large number of datapath flows. Hopefully this impact is not
significant. There are other measures we could investigate if we notice
performance issues (e.g. reduce the max-idle delay for cached datapath
flows to reduce the size of the cache).

Fixes #1583

[antrea-bot]

Thanks for your PR.
Unit tests and code linters are run automatically every time the PR is updated.
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[codecov-io]

Codecov Report

Merging #1584 (566a05f) into master (9d3d10b) will increase coverage by 1.09%.
The diff coverage is 55.55%.

@@            Coverage Diff             @@
##           master    #1584      +/-   ##
==========================================
+ Coverage   63.31%   64.41%   +1.09%     
==========================================
  Files         170      181      +11     
  Lines       14250    15281    +1031     
==========================================
+ Hits         9023     9843     +820     
- Misses       4292     4413     +121     
- Partials      935     1025      +90     

Flag	Coverage Δ
e2e-tests	47.62% <31.30%> (?)
kind-e2e-tests	53.17% <49.84%> (-2.21%)	⬇️
unit-tests	40.47% <12.23%> (-0.81%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/antrea-agent/agent.go	0.00% <0.00%> (ø)
cmd/antrea-agent/options.go	21.69% <0.00%> (+0.97%)	⬆️
pkg/agent/config/node_config.go	100.00% <ø> (ø)
pkg/agent/stats/collector.go	97.72% <ø> (ø)
pkg/controller/networkpolicy/tier.go	100.00% <ø> (+10.00%)	⬆️
pkg/features/antrea_features.go	16.66% <ø> (ø)
pkg/ovs/openflow/ofctrl_builder.go	61.67% <0.00%> (-0.50%)	⬇️
pkg/ovs/openflow/ofctrl_group.go	48.57% <0.00%> (-4.56%)	⬇️
pkg/ovs/openflow/ofctrl_action.go	68.90% <17.14%> (+7.55%)	⬆️
pkg/agent/agent.go	55.38% <30.00%> (+6.67%)	⬆️
... and 75 more

[tnqn]

LGTM, thanks for root causing the issue.

[antoninbas]

/test-all

[antoninbas]

/test-conformance