bug fix to issue #1331

[blonded04]

Description

Fix that functions that are supposed to use __TBB_DEFAULT_PARTITIONER are using auto_partitioner.

Even though by default __TBB_DEFAULT_PARTITIONER is auto_partitioner: when setting __TBB_DEFAULT_PARTITIONER to, for example, simple_partitioner, auto_partitioner was used, not simple_partitioner (which would be used now which is good)

Fixes #1331

• [x] - git commit message contains an appropriate signed-off-by string (see CONTRIBUTING.md for details)

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• [x] bug fix - change that fixes an issue
• [ ] new feature - change that adds functionality
• [ ] tests - change in tests
• [ ] infrastructure - change in infrastructure and CI
• [ ] documentation - documentation update

Tests

• [ ] added - required for new features and some bug fixes
• [x] not needed

Documentation

• [ ] updated in # - add PR number
• [ ] needs to be updated
• [x] not needed

Breaks backward compatibility

• [ ] Yes
• [x] No
• [ ] Unknown

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[blonded04]

@kboyarinov hello! I guess all the conditions from CONTRIBUTING.md are satisified and PR is safe to run in CI.