x86/microcode: Add per CPU result state

mainline inclusion
from mainline-v6.7-rc1
commit 4b753955e9151ad2f722137a7bcbafda756186b3
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8XRMW


CVE: NA

--------------------------------

The microcode rendezvous is purely acting on global state, which does
not allow to analyze fails in a coherent way.

Introduce per CPU state where the results are written into, which allows to
analyze the return codes of the individual CPUs.

Initialize the state when walking the cpu_present_mask in the online
check to avoid another for_each_cpu() loop.

Enhance the result print out with that.

The structure is intentionally named ucode_ctrl as it will gain control
fields in subsequent changes.

Intel-SIG: commit 4b753955e915 x86/microcode: Add per CPU result state.
Microcode restructuring backport.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20231017211723.632681010@linutronix.de


[ Aubrey Li: amend commit log ]
Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com>