x86/bugs: Switch to new Intel CPU model defines

New CPU #defines encode vendor and family as well as model.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20240424181506.41673-1-tony.luck@intel.com