soc/intel/alderlake: Hide PMC and IOM devices

Hide these ACPI device so Windows does not warn about missing device
drivers.

Change-Id: Iba6cf7a17eefc9f4f247621f6625151f2fd5f3a7
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66054
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/soc/intel/alderlake/acpi/tcss.asl

@@ -329,6 +329,8 @@ Scope (\_SB.PCI0)
 		Name (_CRS, ResourceTemplate () {
 			Memory32Fixed (ReadWrite, IOM_BASE_ADDRESS, IOM_BASE_SIZE)
 		})
+		/* Hide the device so that Windows does not complain on missing driver */
+		Name (_STA, 0xB)
 	}
 
 	/*

src/soc/intel/alderlake/pmc.c

@@ -107,6 +107,8 @@ static void soc_pmc_fill_ssdt(const struct device *dev)
 
 	acpigen_write_name_string("_HID", PMC_HID);
 	acpigen_write_name_string("_DDN", "Intel(R) Alder Lake IPC Controller");
+	/* Hide the device so that Windows does not complain on missing driver */
+	acpigen_write_STA(ACPI_STATUS_DEVICE_HIDDEN_ON);
 
 	/*
 	 * Part of the PCH's reserved 32 MB MMIO range (0xFC800000 - 0xFE7FFFFF).