Revert "ACPI: Fan: Drop force_power_state acpi_device option"

This reverts commit 93ad7c07ad.

http://bugzilla.kernel.org/show_bug.cgi?id=9798

Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/bus.c

@@ -200,7 +200,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
 	 * Get device's current power state
 	 */
 	acpi_bus_get_power(device->handle, &device->power.state);
-	if (state == device->power.state) {
+	if ((state == device->power.state) && !device->flags.force_power_state) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
 				  state));
 		return 0;