mei: fix CNL itouch device number to match the spec.

The Cannon Lake device for itouch in HW spec is numbered 3, not 4.
Fix the internal numbering to match the HW spec.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200227112737.8383-1-tomas.winkler@intel.com


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