mb/google/skyrim/var/markarth: Fix USB port ACPI generation

The overridetree definitions for the USB ports wrongly double-nested
the ports, causing the generated SSDT to be incorrect, leading to
an error in dmesg:

ACPI BIOS error (bug): Could not resolve symbol \
  [\_SB.PCI0.GP41.XHC1.RHUB.HS02.HS03], AE_NOT_FOUND

BUG=b:283778468
BRANCH=skyrim
TEST=untested, but same error/fix as frostflow variant.

Change-Id: Ie40541ada508acfa5771ea800249b8a57b168e3b
Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75339
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
diff --git a/src/mainboard/google/skyrim/variants/markarth/overridetree.cb b/src/mainboard/google/skyrim/variants/markarth/overridetree.cb
index bdfd3fd..34d3f9d 100644
--- a/src/mainboard/google/skyrim/variants/markarth/overridetree.cb
+++ b/src/mainboard/google/skyrim/variants/markarth/overridetree.cb
@@ -51,24 +51,18 @@
 					device ref xhci_1_root_hub on # XHCI1 root hub
 						chip drivers/usb/acpi
 							device ref usb3_port3 on # USB 3.1 port3
-								chip drivers/usb/acpi
-									register "desc" = ""USB3 Type-A Port A0 (MLB)""
-									register "type" = "UPC_TYPE_USB3_A"
-									register "use_custom_pld" = "true"
-									register "custom_pld" = "ACPI_PLD_TYPE_A(LEFT, RIGHT, ACPI_PLD_GROUP(2, 2))"
-									device usb 3.1 on end
-								end
+								register "desc" = ""USB3 Type-A Port A0 (MLB)""
+								register "type" = "UPC_TYPE_USB3_A"
+								register "use_custom_pld" = "true"
+								register "custom_pld" = "ACPI_PLD_TYPE_A(LEFT, RIGHT, ACPI_PLD_GROUP(2, 2))"
 							end # USB 3.1 port3
 						end
 						chip drivers/usb/acpi
 							device ref usb2_port3 on # USB 2 port3
-								chip drivers/usb/acpi
-									register "desc" = ""USB2 Type-A Port A0 (MLB)""
-									register "type" = "UPC_TYPE_USB3_A"
-									register "use_custom_pld" = "true"
-									register "custom_pld" = "ACPI_PLD_TYPE_A(LEFT, RIGHT, ACPI_PLD_GROUP(2, 2))"
-									device usb 2.1 on end
-								end
+								register "desc" = ""USB2 Type-A Port A0 (MLB)""
+								register "type" = "UPC_TYPE_USB3_A"
+								register "use_custom_pld" = "true"
+								register "custom_pld" = "ACPI_PLD_TYPE_A(LEFT, RIGHT, ACPI_PLD_GROUP(2, 2))"
 							end # USB 2 port3
 						end
 					end # XHCI1 root hub