platform/x86: intel_scu_wdt: Move intel_scu_wdt.h to x86 subfolder

This is a platform/x86 library that can only be used on x86 devices.
so it makes sense that it lives under the platform_data/x86/ directory
instead.

No functional changes intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240909124952.1152017-4-andriy.shevchenko@linux.intel.com


Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>