fix memory leaks in types_cb() in librz/arch/omf_process.c

[Syh-Xiong]

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• 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.
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Detailed description
I think we should free the previously successfully allocated blocks in the allocation-failure branch.

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Test plan

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Closing issues

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.35%. Comparing base (4b103d1) to head (5f6d045).

Files with missing lines	Patch %	Lines
librz/arch/omf_process.c	0.00%	10 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
librz/arch/omf_process.c	66.83% <0.00%> (-3.54%)	⬇️

... and 15 files with indirect coverage changes

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