ACPICA: New: acpi_reset interface - write to reset register

Uses the FADT-defined reset register and reset value. Checks the
FADT flags for the reset register supported bit. Supports reset
register in memory or I/O space, but not in PCI config space
since the host has the information to do it.

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

include/acpi/acpixf.h

@@ -322,6 +322,8 @@ acpi_resource_to_address64(struct acpi_resource *resource,
 /*
  * Hardware (ACPI device) interfaces
  */
+acpi_status acpi_reset(void);
+
 acpi_status acpi_get_register(u32 register_id, u32 * return_value);
 
 acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value);