pinctrl: sunrisepoint: Fix PAD lock register offset for SPT-H

It appears that SPT-H variant has different offset for PAD locking registers.
Fix it here.

Fixes: 551fa580 ("pinctrl: intel: sunrisepoint: Add Intel Sunrisepoint-H support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>