intel/devinfo: Add MTL platforms enums and intel_device_info_is_mtl()

Ref: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/drm/i915_pciids.h?h=v6.0-rc4#n736
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18482>
1 file changed