USB: fix autosuspend when CONFIG_PM isn't set

This patch (as791b) fixes things up to avoid compiler warnings or
errors when CONFIG_USB_SUSPEND or CONFIG_PM isn't set.

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

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 0da15b0..190cc1b 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -380,10 +380,10 @@
 	int maxchild;			/* Number of ports if hub */
 	struct usb_device *children[USB_MAXCHILDREN];
 
+	int pm_usage_cnt;		/* usage counter for autosuspend */
 #ifdef CONFIG_PM
 	struct work_struct autosuspend;	/* for delayed autosuspends */
 	struct mutex pm_mutex;		/* protects PM operations */
-	int pm_usage_cnt;		/* usage counter for autosuspend */
 
 	unsigned auto_pm:1;		/* autosuspend/resume in progress */
 	unsigned do_remote_wakeup:1;	/* remote wakeup should be enabled */