fix memory leaks in sections in librz/bin/p/bin_nso.c

[Syh-Xiong]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository.
• I made sure to follow the project's coding style.
• I've documented every RZ_API function and struct this PR changes.
• I've added tests that prove my changes are effective (required for changes to RZ_API).
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Detailed description
I think the previously allocated ptr should be freed in both branches at lines 325 and 332

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Test plan

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Closing issues

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.35%. Comparing base (4b103d1) to head (18f97e4).

Files with missing lines	Patch %	Lines
librz/bin/p/bin_nso.c	0.00%	2 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
librz/bin/p/bin_nso.c	53.81% <0.00%> (-0.44%)	⬇️

... and 7 files with indirect coverage changes

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