x86: acpi: Correct the version of the MADT

Currently U-Boot implements version 2 but reports version 4. Correct it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
1 file changed