mb/google/brox: Set PCIE WLAN bluetooth companion device

To publish the Bluetooth Regulator Domain Settings under the right
ACPI device scope, the wifi generic driver requires the bluetooth
companion to be set accordingly.

BUG=b:362672785
TEST=Build Brox firmware and boot to OS. Ensure that the BRDS table is
populated under the right ACPI device scope.
Scope (\_SB.PCI0.XHCI.RHUB.HS10)
{
    Name (BRDS, Package (0x02)
    {
        0x00000001,
        Package (0x0A)
        {
            0x00000012,
            0x00000001,
            0x00000001,
            0x7C,
            0x70,
            0x70,
            0x70,
            0x70,
            0x70,
            0x70
        }
    })
}

Change-Id: I9a74a995bca8d412b85c243c7f2f98c9917b5e76
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84296
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Bob Moragues <moragues@google.com>

src/mainboard/google/brox/variants/brox/overridetree.cb

@@ -287,6 +287,7 @@ chip soc/intel/alderlake
 			chip drivers/wifi/generic
 				register "wake" = "GPE0_DW0_03"
 				register "add_acpi_dma_property" = "true"
+				use usb2_port10 as bluetooth_companion
 				device pci 00.0 on
 					probe WIFI_BT WIFI_BT_PCIE
 				end

src/mainboard/google/brox/variants/jubilant/overridetree.cb

@@ -289,6 +289,7 @@ chip soc/intel/alderlake
 			chip drivers/wifi/generic
 				register "wake" = "GPE0_DW0_03"
 				register "add_acpi_dma_property" = "true"
+				use usb2_port10 as bluetooth_companion
 				device pci 00.0 on
 					probe WIFI_BT WIFI_BT_PCIE
 					probe unprovisioned

src/mainboard/google/brox/variants/lotso/overridetree.cb

@@ -340,6 +340,7 @@ chip soc/intel/alderlake
 			chip drivers/wifi/generic
 				register "wake" = "GPE0_DW0_03"
 				register "add_acpi_dma_property" = "true"
+				use usb2_port10 as bluetooth_companion
 				device pci 00.0 on end
 			end
 			chip soc/intel/common/block/pcie/rtd3