arch/intel64: colorize IDLE stack for AP cores

[szafonimateusz-mi]

Summary

colorize IDLE stack for AP cores in x86_64

Impact

CONFIG_STACK_COLORATION=y works also for AP cores IDLE stack

Testing

qemu

[nuttxpr]

[Experimental Bot, please feedback here]

No, this PR does not meet the NuttX Requirements.

Missing Information:

• Summary:
  • Why is this change necessary? Is there a bug being fixed? Is this a new feature request?
  • How does the change work? Provide a technical explanation of how the IDLE stack coloration is implemented for AP cores.
• Impact:
  • Is this a new feature? If so, clarify this in the Impact section.
  • Impact on documentation: Will the documentation need to be updated to reflect this change?
• Testing:
  • Build Host(s): Provide details about your build host environment (OS, CPU, compiler version).
  • Target(s): Specify the architecture and board configuration used for testing.
  • Testing Logs: Include relevant testing logs from before and after the change.

Recommendations:

1. Expand the Summary: Clearly state the purpose of the change, whether it's a bug fix, new feature, or enhancement. Explain the technical details of how the change is implemented.
2. Complete the Impact Section: Address all impact points, especially if documentation updates are required.
3. Provide Detailed Testing Information: Specify your build host and target environments, and include relevant testing logs demonstrating the change's effect.

By providing the missing information, you will make your PR easier for reviewers to understand and approve.

[masayuki2009]

@szafonimateusz-mi
I noticed qemu-intel64:smp does not boot now with this PR.