Fix I2S examples

[bjoernQ]

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To help us review it efficiently, please ensure you've gone through the following checklist:

Submission Checklist 📝

• I have updated existing examples or added new ones (if applicable).
• I have used cargo xtask fmt-packages command to ensure that all changed code is formatted correctly.
• My changes were added to the CHANGELOG.md in the proper section.
• I have added necessary changes to user code to the Migration Guide.
• My changes are in accordance to the esp-rs API guidelines

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• I have read the CONTRIBUTING.md guide and followed its instructions.

Pull Request Details 📖

Description

Well, this was a very easy one

The macros to conveniently create descriptors and buffers were changed to RX-TX but in the example code the requested buffer size wasn't swapped in the parameter list of the macro invocation

No changelog - just examples changed

Testing

The changed examples work, again

[bugadani]

I can see that in #2074 everything (as in, inputs and outputs of the macro defintion) got swapped except for these values. Good find!

[bugadani]

Having said that, it looks like lcd_cam, lcd_i8080, parl_io and qspi_flash examples may be similarly affected, and the migration guide should include how to update code using the asymmetric macros.

Would you tackle these in this PR, or should we do them in a follow-up?

[bjoernQ]

Having said that, it looks like lcd_cam, lcd_i8080, parl_io and qspi_flash examples may be similarly affected, and the migration guide should include how to update code using the asymmetric macros.

Oh yes 🙈 - good catch

Will address this in this PR

[JurajSadel]

Thanks!