mb/google/fatcat/var/francka: Enable CNVi wifi core

Enable CNVi wifi core for francka.

BUG=b:391772114
TEST=Build and boot to OS in francka.
lspci:
00:14.3 Network controller: Intel Corporation Device e440

Change-Id: I80c38882aab801dedb05355774e5b930a8528fed
Signed-off-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86262
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/fatcat/variants/francka/overridetree.cb

@@ -53,6 +53,9 @@ chip soc/intel/pantherlake
 	# TCSS USB3
 	register "tcss_aux_ori" = "1"
 
+	# Enable CNVi WiFi
+	register "cnvi_wifi_core" = "true"
+
 	register "serial_io_i2c_mode" = "{
 		[PchSerialIoIndexI2C0]  = PchSerialIoPci,
 		[PchSerialIoIndexI2C1]  = PchSerialIoPci,