mb/google/dedede/var/madoo: Add discrete WiFi configuration

Add RTL8822CE support for Madoo.

BUG=b:162390420
BRANCH=None
TEST=FW_NAME=madoo emerge-dedede coreboot chromeos-bootimage, build successful

Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I6e471be2b2856977e6f728d5a2ca78942725bea6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44056
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
diff --git a/src/mainboard/google/dedede/variants/madoo/overridetree.cb b/src/mainboard/google/dedede/variants/madoo/overridetree.cb
index 3f99927..6937338 100644
--- a/src/mainboard/google/dedede/variants/madoo/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/madoo/overridetree.cb
@@ -91,7 +91,13 @@
 			end
 		end # I2C 2
 		device pci 15.3 off  end # I2C 3
-		device pci 1c.7 on end
+		device pci 1c.7 on
+			chip drivers/wifi/generic
+				register "wake" = "GPE0_DW2_03"
+				register "maxsleep" = "3"
+				device pci 00.0 on  end
+			end
+		end # PCI Express Root Port 8 - WLAN
 		device pci 19.0 on
 			chip drivers/i2c/generic
 				register "hid" = ""10EC5682""