x86/microcode/intel: Switch to kvmalloc()

commit f24f2044 upstream

Microcode blobs are getting larger and might soon reach the kmalloc()
limit. Switch over kvmalloc().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20231002115902.564323243@linutronix.de


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>