x86/microcode/AMD: Add a @cpu parameter to the reloading functions

commit a5ad9213 upstream.

Will be used in a subsequent change.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230130161709.11615-3-bp@alien8.de


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