intel_th: pci: Add Comet Lake support

commit e60e9a4b231a20a199d7a61caadc48693c30d695 upstream.

This adds support for Intel TH on Comet Lake.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>