Sparc: RzIL

[Rot127]

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).
• [ ] I've updated the Rizin book with the relevant information (if needed).

Detailed description

Todo

• [x] Double/quad float loading addresses incorrect register.
• [x] LDX/A should have same semantics as LDW, LDH etc.

Test plan

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Closing issues

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