util/sconfig: Add LPC and ESPI buses

Picasso has an LPC and eSPI bridge on the same PCI DEVFN. They can both
be active at the same time. This adds a way to specify which devices
belong on which bus.

i.e.,
device pci 14.3 on  # - D14F3 bridge
	device espi 0 on
		chip ec/google/chromeec
			device pnp 0c09.0 on end
		end
	end
	device lpc 0 on
	end
end

BUG=b:154445472
TEST=Built trembyle and saw static.c contained the espi bus.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I0c2f40813c05680f72e5f30cbb13617e8f994841
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41099
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/device/device_const.c b/src/device/device_const.c
index 65ec157..3ad00f8 100644
--- a/src/device/device_const.c
+++ b/src/device/device_const.c
@@ -156,6 +156,12 @@
 	case DEVICE_PATH_MMIO:
 		equal = (path1->mmio.addr == path2->mmio.addr);
 		break;
+	case DEVICE_PATH_ESPI:
+		equal = (path1->espi.addr == path2->espi.addr);
+		break;
+	case DEVICE_PATH_LPC:
+		equal = (path1->lpc.addr == path2->lpc.addr);
+		break;
 	default:
 		printk(BIOS_ERR, "Unknown device type: %d\n", path1->type);
 		break;