mb/msi/ms7d25: Properly handle CnvDdrRfim parameter

CNVi DDR RFIM feature should be reported via _DSM function. Add the
generic WiFi device which will generate the proper ACPI code and
pass the CnviDdrRfim parameter to FSP by SoC driver.

TEST=Connect to WiFi network on Ubuntu.

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Ice2abe972f38dd819f7f0103f7b9a697096f1cd9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63835
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/msi/ms7d25/devicetree.cb

@@ -122,6 +122,11 @@ chip soc/intel/alderlake
 			# Enable CNVi BT
 			register "cnvi_bt_core" = "true"
 			register "cnvi_bt_audio_offload" = "false"
+			chip drivers/wifi/generic
+				register "wake" = "GPE0_PME_B0"
+				register "enable_cnvi_ddr_rfim" = "true"
+				device generic 0 on end
+			end
 		end
 		device ref heci1 on end
 		device ref heci2 off end