mainboard/google/guybrush: Update Wake-On-LAN functionality

The generic wifi driver currently contains a lot of intel specific
functionality that results in it not working properly on AMD platforms.
This commit updates the base device tree to use the generic PCIe driver
instead.

BUG=none
TEST=Ran on nipperkin device, dumped SSDT and checked wakeup sources

Change-Id: Iafbc68c1ae33ccc260889f0b39fc5fe8a59d7aca
Signed-off-by: Robert Zieba <robertzieba@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65990
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/guybrush/Kconfig

@@ -21,7 +21,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select DRIVERS_I2C_HID
 	select DRIVERS_PCIE_RTD3_DEVICE
 	select DRIVERS_UART_ACPI
-	select DRIVERS_WIFI_GENERIC
+	select DRIVERS_PCIE_GENERIC
 	select EC_GOOGLE_CHROMEEC
 	select EC_GOOGLE_CHROMEEC_BOARDID
 	select EC_GOOGLE_CHROMEEC_ESPI

src/mainboard/google/guybrush/variants/baseboard/devicetree.cb

@@ -227,8 +227,10 @@ chip soc/amd/cezanne
 		device ref iommu on end
 
 		device ref gpp_bridge_0 on
-			chip drivers/wifi/generic
-				register "wake" = "GEVENT_8"
+			chip drivers/pcie/generic
+				register "wake_gpe" = "GEVENT_8"
+				register "wake_deepest" = "ACPI_S0"
+				register "name" = ""WLAN""
 				device pci 00.0 on end
 			end
 		end # WLAN