pinctrl: tigerlake: Tiger Lake uses _HID enumeration

Turns out that Tiger Lake GPIO will be enumerated using _HID method where
there is only a single ACPI device and multiple BARs so rework the driver
to support that scheme instead.

Fixes: c9ccf71 ("pinctrl: intel: Add Intel Tiger Lake pin controller support")
Signed-off-by: Mika Westerberg <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>

Author: westeri