fix streaming channel ring buffer chunck management

[houkhouk]

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PR Description section

In streaming.c, in the case data does not fit remaining space in the ring buffer, it seems that the chunck1 computation is false and missing the last slot of the buffer. That leads to an "empty" slot in the buffer that is later considered as data.

Description and dependencies

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Changes

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• [ x] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
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Related issue(s)

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Developer section

• [Documentation] is up to date with new feature
• [Tests] are passed OK (non regression, new features & bug fixes)
• [Code Quality] please check if:
  • Each function has a header (description, inputs, outputs)
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QA section

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  🆕 Feature: [Feature] Description...
  🆕 Added: [Feature] Description...
  🆕 Changed: [Feature] Description...
  🛠️ Fix: [Feature] Description...