[7.16](backport #27955) libbeat/common/seccomp: provide default policy for linux arm64

[mergify]

This is an automatic backport of pull request #27955 done by Mergify.

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💔 Build Failed

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Build stats

• Start Time: 2021-11-10T18:16:22.120+0000

• Duration: 127 min 25 sec

• Commit: c10815a

Test stats 🧪

Test	Results
Failed	0
Passed	55197
Skipped	5315
Total	60512

Steps errors

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filebeat-pythonIntegTest - mage pythonIntegTest

• Took 15 min 36 sec . View more details here
• Description: mage pythonIntegTest

💚 Flaky test report

Tests succeeded.

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