netutils: introduce libwebsockets support

[W-M-R]

Summary

1. netutils: introduce libwebsockets support
2. Fix to compile failure after mqttc is enabled

Impact

Testing

[nuttxpr]

[Experimental Bot, please feedback here]

No, the provided PR summary lacks details.

Missing Information:

• Detailed explanation of changes:
  • What is the purpose of introducing libwebsockets support?
  • What specific compilation failure was addressed in the mqttc fix? How was it fixed?
• Impact Assessment:
  • The "Impact" section is entirely empty. You must address each impact area:
    • Will this add features, change existing ones?
    • How will it impact users (configuration, usage)?
    • Will the build process change (new dependencies, options)?
    • Which hardware architectures, boards, or drivers are affected?
    • Is documentation impacted (updates needed or provided)?
    • Are there security implications?
    • Is backward/forward compatibility or interoperability affected?
• Testing Details:
  • You haven't provided any information about your testing environment.
    • What host OS, CPU, and compiler did you use for building?
    • Which target architectures and boards did you test on? Were they real hardware or simulators?
  • The "Testing logs" sections are empty. You need to provide actual logs demonstrating the issue before the change and the successful outcome after the change.

To meet the NuttX PR requirements, you need to:

1. Expand the Summary: Provide specific details about the changes and their purpose.
2. Complete the Impact Assessment: Address all impact areas thoroughly.
3. Provide Detailed Testing Information: Describe your testing environment and include relevant logs.

Remember, a well-documented PR is crucial for reviewers to understand and approve your changes.

[pkarashchenko]

Should this be wrapped with if for MBED_TLS config?

[xiaoxiang781216]

@W-M-R please take a look at this.