serial: 8250dw: Add device HID for future AMD UART controller

Add device HID AMDI0020 to match the AMD ACPI Vendor ID (AMDI) as
registered in http://www.uefi.org/acpi_id_list, and the UART
controller on future AMD paltform will use the HID instead of AMD0020.
Signed-off-by: Wang Hongcheng <annie.wang@amd.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_dw.c

@@ -617,6 +617,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = {
 	{ "8086228A", 0 },
 	{ "APMC0D08", 0},
 	{ "AMD0020", 0 },
+	{ "AMDI0020", 0 },
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);