change(xtensa): Add -mno-target-align to size-optimized builds (IDFGH-14980)

[rojer]

Description

Saves space, about 6K in our application

Testing

Been using this for a long time now - no issues

Checklist

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• 🚨 This PR does not introduce breaking changes.
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• Documentation is updated as needed.
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• Git history is clean — commits are squashed to the minimum necessary.

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[rojer]

ping @Lapshin or @gerekon - it's been a while