[OPT] 🔧 Optimize CPUID Instruction Implementation

[Unam3dd]

🔧 Optimize CPUID Instruction Implementation

Description:
The current implementation of the cpuid instruction in our project is not optimized. It is spread across three headers and contains large, inefficient loops. We need to refactor this implementation to improve performance and reduce code complexity.

Goals:

1. 📁 Consolidate the cpuid part instruction implementation into a single header file.
2. 🚀 Eliminate any large loops or unnecessary code to streamline the implementation.
3. ✅ Ensure the optimized implementation maintains all current functionality.

Current Implementation:

• Header 1: inc/eth-cpuid-flag.h
• Header 2: inc/eth-cpuid-lut.h
• Header 3: inc/eth-cpuid.h

Requirements:

1. Single Header: The optimized implementation should be contained within a single header file named eth-cpuid.h.
2. Performance: The new implementation should be optimized for performance. Avoid large loops and aim for a concise and efficient code structure.
3. Maintain Functionality: Ensure all current functionality provided by the existing headers is retained.
4. Code Quality: Follow best practices for code quality, including clear comments and proper formatting.

Additional Notes:

• 🧐 Please review the existing code in the three headers before starting the optimization.
• 📄 Ensure that the new implementation is well-documented, especially where optimizations are applied.
• 🧪 Write unit tests to verify the functionality of the new implementation.
• ✍️ Provide a brief explanation of the optimizations made and their benefits in the pull request description.

Acceptance Criteria:

• A single cpuid.h header file with the optimized implementation.
• All existing functionalities are preserved and verified through unit tests.
• Code is efficient, with no large loops or unnecessary complexity.
• Documentation is updated to reflect the changes.
• Respect commit please (don't make a too large commit)