ACPI: osl, add acpi_os_create_lock interface

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

include/acpi/acpiosxf.h

@@ -98,6 +98,9 @@ acpi_os_table_override(struct acpi_table_header *existing_table,
 /*
  * Spinlock primitives
  */
+acpi_status
+acpi_os_create_lock(acpi_spinlock *out_handle);
+
 void acpi_os_delete_lock(acpi_spinlock handle);
 
 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);