ec/google/chromeec: Add PLD to EC conn in ACPI table

Given EC CON and associated USB port objects, custom_pld or pld_group
information is retrieved from port and added to ACPI table as _PLD field
for typec connector.

BUG=b:202446737
TEST=emerge-brya coreboot & SSDT dump in Brya test device

Signed-off-by: Won Chung <wonchung@google.com>
Change-Id: Ibc56ecd4e8954ffaace3acd9528a064b5fa2cf6f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59401
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/acpi/acpigen_usb.c

@@ -2,6 +2,7 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acpi_device.h>
+#include <acpi/acpi_pld.h>
 #include <acpi/acpigen.h>
 #include <acpi/acpigen_usb.h>
 
@@ -132,5 +133,8 @@ void acpigen_write_typec_connector(const struct typec_connector_class_config *co
 		add_custom_dsd_property(dsd, port_number);
 	acpi_dp_write(dsd);
 
+	/* Add PLD */
+	acpigen_write_pld(config->pld);
+
 	acpigen_pop_len(); /* Device */
 }