Following patch fixes the bug introduced by me in VID VRM patch.
Spotted (and later reviewed) by Jean Delvare. This bug is non-fatal,
it8712 will be just treated as it was before my VID VRM patch.

Tested on it8705 and it8712  hardware.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>