suppress usage of AVX instructions in mxnet (102X version of #4194)

[slava77]

this is a 10_2_X version of #4194

a copy of that PR description follows

I was testing cms-sw/cmssw#23768 on non-AVX machine and saw crashes due to invalid instructions.
In the specific case, it was a call to vpxor in mxnet::op::AdaptiveAvgPoolParam::__MANAGER__() ().
After recompiling with USE_F16C=0, the same place in the code is using a simple pxor.

[cmsbuild]

A new Pull Request was created by @slava77 (Slava Krutelyov) for branch IB/CMSSW_10_2_X/gcc630.

@cmsbuild, @smuzaffar, @gudrutis, @mrodozov can you please review it and eventually sign? Thanks.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/29275/console

[cmsbuild]

+1
Tested at: e66667a
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4198/29275/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4198/29275/summary.html

The workflows 1001.0, 1000.0, 140.53, 136.85, 136.8311, 136.7611, 136.731, 4.22 have different files in step1_dasquery.log than the ones found in the baseline. You may want to check and retrigger the tests if necessary. You can check it in the "files" directory in the results of the comparisons

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 31
• DQMHistoTests: Total histograms compared: 2892290
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2892099
• DQMHistoTests: Total skipped: 190
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 30 files compared)
• Checked 128 log files, 14 edm output root files, 31 DQM output files

[smuzaffar]

+extenals