USB: remove the auto_pm flag

This patch (as1302) removes the auto_pm flag from struct usb_device.
The flag's only purpose was to distinguish between autosuspends and
external suspends, but that information is now available in the
pm_message_t argument passed to suspend methods.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/sierra.c

@@ -1005,7 +1005,7 @@ static int sierra_suspend(struct usb_serial *serial, pm_message_t message)
 	struct sierra_intf_private *intfdata;
 	int b;
 
-	if (serial->dev->auto_pm) {
+	if (message.event & PM_EVENT_AUTO) {
 		intfdata = serial->private;
 		spin_lock_irq(&intfdata->susp_lock);
 		b = intfdata->in_flight;