Update samples. move battery dump to system, fix problems report by coverity(unsigned compare with 0)

[jasonbu]

Summary

Add example for wakeup gpio type.
Update regulator samples.
move battery dump to system.
fix pmconfig command catched issue reported by coverity(unsigned compare with 0)

Impact

more samples,
batterydump now regard as a tool, not a test

Testing

CI-test.

[nuttxpr]

[Experimental Bot, please feedback here]

This PR does not meet the NuttX requirements.

Here's why:

• Summary is incomplete:
  • It lacks details about the necessity, functionality changes, and working mechanism of the change.
  • It doesn't mention related issues or pull requests.
• Impact section lacks details:
  • Simply stating "No" for all impact points is insufficient. Even if there's no impact, a brief explanation is helpful for reviewers.
• Testing is insufficient:
  • "CI-test" is not descriptive enough.
  • You need to provide:
    • Specific build host and target details (OS, architecture, board, configuration).
    • Relevant testing logs from before and after the change to demonstrate the issue and the fix.

To improve this PR:

1. Expand the Summary: Provide specific details about the change's purpose, affected code, and how it works. Include links to related issues/PRs.
2. Elaborate on Impact: Even if there's no impact in most areas, briefly explain why. For example, "No impact on build process as the change is limited to documentation."
3. Provide Detailed Testing Information:
   • List the specific build hosts (OS, CPU, compiler) and targets (architecture, board, configuration) used for testing.
   • Include relevant snippets of testing logs from before and after the change, clearly showing the problem and the solution.

[cederom]

Please update PR description Summary/Impact/Testing according to bot suggestions.