skl mainboards/dt: Move usb{2,3}_ports settings into XHCI device scope

Change-Id: I22ba991a9d559b0ecc7b3ceddcfd099890dd6c3a
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83171
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Marvin Evers <marvin.n.evers@gmail.com>
Reviewed-by: Erik van den Bogaert <ebogaert@eltan.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Jonathon Hall <jonathon.hall@puri.sm>
diff --git a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
index 1ef0b45..140f5f8 100644
--- a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
@@ -147,16 +147,6 @@
 	register "PcieRpAdvancedErrorReporting[8]" = "1"
 	register "PcieRpLtrEnable[8]" = "1"
 
-	# USB 2.0
-	register "usb2_ports[0]" = "USB2_PORT_LONG(OC0)"	# Type-C Port 1
-	register "usb2_ports[2]" = "USB2_PORT_SHORT(OC_SKIP)"	# Bluetooth
-	register "usb2_ports[4]" = "USB2_PORT_LONG(OC1)"	# Type-C Port 2
-	register "usb2_ports[6]" = "USB2_PORT_LONG(OC_SKIP)"	# pogo port
-
-	# USB 3.0
-	register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC0)"	# Type-C Port 1
-	register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC1)"	# Type-C Port 2
-
 	# Intel Common SoC Config
 	#+-------------------+---------------------------+
 	#| Field             |  Value                    |
@@ -247,6 +237,18 @@
 		device ref sa_thermal 		on  end
 		device ref imgu 		on  end
 		device ref south_xhci		on
+			register "usb2_ports" = "{
+				[0] = USB2_PORT_LONG(OC0),	// Type-C Port 1
+				[2] = USB2_PORT_SHORT(OC_SKIP),	// Bluetooth
+				[4] = USB2_PORT_LONG(OC1),	// Type-C Port 2
+				[6] = USB2_PORT_LONG(OC_SKIP),	// pogo port
+			}"
+
+			register "usb3_ports" = "{
+				[0] = USB3_PORT_DEFAULT(OC0),	// Type-C Port 1
+				[1] = USB3_PORT_DEFAULT(OC1),	// Type-C Port 2
+			}"
+
 			chip drivers/usb/acpi
 				register "desc" = ""Root Hub""
 				register "type" = "UPC_TYPE_HUB"