mb/google/rex/var/deku: Update USB _PLD values

Fix custom_pld for USB2-C2 and USB3-C3 with same PLD group.
Update USB2-A4 PLD group token.

USB2/USB3 Type-C Port C2
"ACPI_PLD_TYPE_C(BACK, CENTER, ACPI_PLD_GROUP(3, 1))"
USB2/USB3 Type-C Port C3
"ACPI_PLD_TYPE_C(BACK, LEFT, ACPI_PLD_GROUP(4, 1))"

BUG=b:320203629
BRANCH=firmware-rex-15709.B
TEST= emerge-ovis coreboot

Change-Id: Ieecf0f7dda671a421e4e4a4adbf83240fadd018d
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82036
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
diff --git a/src/mainboard/google/rex/variants/deku/overridetree.cb b/src/mainboard/google/rex/variants/deku/overridetree.cb
index ab0c6dc..070f596 100644
--- a/src/mainboard/google/rex/variants/deku/overridetree.cb
+++ b/src/mainboard/google/rex/variants/deku/overridetree.cb
@@ -143,7 +143,7 @@
 						register "desc" = ""USB3 Type-C Port C3""
 						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
 						register "use_custom_pld" = "true"
-						register "custom_pld" = "ACPI_PLD_TYPE_C(FRONT, LEFT, ACPI_PLD_GROUP(4, 1))"
+						register "custom_pld" = "ACPI_PLD_TYPE_C(BACK, LEFT, ACPI_PLD_GROUP(4, 1))"
 						device ref tcss_usb3_port3 on end
 					end
 				end
@@ -195,7 +195,7 @@
 						register "desc" = ""USB2 Type-C Port C2""
 						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
 						register "use_custom_pld" = "true"
-						register "custom_pld" = "ACPI_PLD_TYPE_C(BACK, LEFT, ACPI_PLD_GROUP(3, 1))"
+						register "custom_pld" = "ACPI_PLD_TYPE_C(BACK, CENTER, ACPI_PLD_GROUP(3, 1))"
 						device ref usb2_port1 on end
 					end
 					chip drivers/usb/acpi
@@ -237,7 +237,7 @@
 						register "desc" = ""USB2 Type-A Port A4""
 						register "type" = "UPC_TYPE_A"
 						register "use_custom_pld" = "true"
-						register "custom_pld" = "ACPI_PLD_TYPE_A(BACK, CENTER, ACPI_PLD_GROUP(5, 4))"
+						register "custom_pld" = "ACPI_PLD_TYPE_A(FRONT, LEFT, ACPI_PLD_GROUP(5, 5))"
 						device ref usb2_port6 on end
 					end
 					chip drivers/usb/acpi