mb/google/brya/var/brask: Configure the ISOLATE pin of LAN

1. Copy the default configuration from Puff.
2. Update the 'stop_gpio' to GPP_H22.

BUG=b:193750191
BRANCH=None
TEST=Update kernel for 8125 outbox driver and test with
     command suspend_stress_test.

Change-Id: I2e82dbc1e6c68cbd84b603adc7fdc3ee1d4d3392
Signed-off-by: Alan Huang <alan-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58105
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/mainboard/google/brya/Kconfig

@@ -9,6 +9,7 @@ config BOARD_GOOGLE_BASEBOARD_BRASK
 	select SPD_CACHE_IN_FMAP
 	select ENABLE_TCSS_DISPLAY_DETECTION if RUN_FSP_GOP
 	select RT8168_GET_MAC_FROM_VPD
+	select RT8168_GEN_ACPI_POWER_RESOURCE
 
 if BOARD_GOOGLE_BASEBOARD_BRYA || BOARD_GOOGLE_BASEBOARD_BRASK
 

src/mainboard/google/brya/variants/brask/overridetree.cb

@@ -81,6 +81,10 @@ chip soc/intel/alderlake
 		end
 		device ref pcie_rp7 on
 			chip drivers/net
+				register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_H22)"
+				register "stop_delay_ms" = "12" # NIC needs time to quiesce
+				register "stop_off_delay_ms" = "1"
+				register "has_power_resource" = "1"
 				device pci 00.0 on end
 			end
 		end # RTL8125 Ethernet NIC