ACPI: platform: Constify properties parameter in acpi_create_platform_device()

Properties are not and should not be changed in the callee, hence constify
properties parameter in acpi_create_platform_device().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>