x86/microcode/intel: Reuse intel_cpu_collect_info()

No point for an almost duplicate function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20231002115902.741173606@linutronix.de