pinctrl: intel: Add Intel Cannon Lake PCH pin controller support

This adds pinctrl/GPIO support for Intel Cannon Lake PCH. The Cannon
Lake PCH GPIO is based on newer version of the Intel GPIO hardware.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>