Add cmake build script for math library

[xiaoxiang781216]

Summary

• fix: git status/git status --ignore normalization check problem
• cmake:add kissfft CMake build
• cmake:add gemmlowp CMake build
• cmake:add ruy CMake build

Impact

new cmake file

Testing

ci

[nuttxpr]

[Experimental Bot, please feedback here]

Fill In The Commit Message: This PR contains a Commit with an Empty Commit Message. Please fill in the Commit Message with the PR Summary.

No, this PR does not meet the NuttX requirements.

Missing Information:

• Summary:
  • Lacks a clear explanation of the problem being fixed. What is the "git status/git status --ignore normalization check problem"?
  • Needs more details on how the CMake builds for kissfft, gemmlowp, and ruy are implemented and their purpose within NuttX.
• Impact:
  • While it mentions a new CMake file, it doesn't elaborate on the impact.
  • All other impact categories are left blank, indicating a lack of consideration for potential consequences.
• Testing:
  • Simply stating "ci" is insufficient.
  • Provide specific details about the build hosts, target architectures/boards, and the actual testing logs before and after the change.

Recommendations:

1. Expand the Summary: Clearly articulate the issue being addressed and the implementation details of the CMake additions.
2. Complete the Impact Section: Address all impact categories, even if the answer is "NO" with a brief justification.
3. Provide Detailed Testing Information: List the build hosts, target environments, and include the actual testing logs before and after applying your changes.