util/inteltool: Add Apollo Lake GPIO groups and names

Apollo Lake has four GPIO communities each with a single group named
after the physical location of the pads (I guess): North West, North,
West and South West.

Also add some logic to be able to tag the default function of a pad
(with an asterisk before its name). This seems easier to review in the
tables, but we could also encode the number of the default explicitly
instead.

Used Intel documents:
- 334817-001 (datasheet vol. 1)
- 334819-001 (datasheet vol. 3)

Change-Id: I5cd687fdc1d2ae81f2e948178bf319897b47f031
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Signed-off-by: Felix Singer <migy@darmstadt.ccc.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29897
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

util/inteltool/gpio.c

@@ -1026,6 +1026,7 @@ int print_gpios(struct pci_dev *sb, int show_all, int show_diffs)
 		break;
 	case PCI_DEVICE_ID_INTEL_B150:
 	case PCI_DEVICE_ID_INTEL_CM236:
+	case PCI_DEVICE_ID_INTEL_APL_LPC:
 	case PCI_DEVICE_ID_INTEL_DNV_LPC:
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE:
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM: