Fix RzIODescData magic checks (Fix #2696)

[thestr4ng3r]

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 or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the rizin book with the relevant information (if needed)

Detailed description

Fix a regression from 7672170:
The native macOS debugger was broken because of the full 64bit hash
being compared to a truncated version of itself.
This magic is probably entirely superfluous, but we first restore the
functionality as it was before.

Test plan

On macOS, rz -d <some executable> should show some code/data of the process.

Fix #2696