fix missing ipps.h by pinning ipp

[casperdcl]

Describe your changes

In the last few days tests started failing due to ipp=2021.10.0 (re)moving the ipps.h header.

Possible solutions:

• pin to ipp=2021.9.0 (previous version, working)
• drop ipps.h?

Describe any testing you have performed

Haven't fully tested, should check upstream (ipp) changelog in detail first. According to https://www.intel.com/content/www/us/en/docs/ipp/developer-guide-reference/2021-10/fftinit-r-fftinit-c.html, ipps.h should still exist in 2021.10. Maybe it's a bug in their latest release?

Link relevant issues

Checklist when you are ready to request a review

• I have performed a self-review of my code
• I have added docstrings in line with the guidance in the developer guide
• I have implemented unit tests that cover any new or modified functionality
• CHANGELOG.md has been updated with any functionality change
• Request review from all relevant developers
• Change pull request label to 'Waiting for review'

Contribution Notes

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• The content of this Pull Request (the Contribution) is intentionally submitted for inclusion in CIL (the Work) under the terms and conditions of the Apache-2.0 License.
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[casperdcl]

replaced by #1583