USB: AT91 UDC updates, mostly power management

UDC updates for AT91 series processors:

 - Get ready for at91sam926x processors (ARMv5tej not ARMv4t)

 - Suspend/resume support now behaves properly

 - In "standby" mode, UDC can be a source of system wakeup events
   (host resume, device connect/disconnect, etc)

 - Fix IRQ storming issues, seemingly related to clock disabling
   changes that went in a while back

And minor cleanups, especially whitespace.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Victor  <andrew@sanpeople.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


diff --git a/drivers/usb/gadget/at91_udc.h b/drivers/usb/gadget/at91_udc.h
index 5a4799c..882af42 100644
--- a/drivers/usb/gadget/at91_udc.h
+++ b/drivers/usb/gadget/at91_udc.h
@@ -141,6 +141,7 @@
 	struct clk			*iclk, *fclk;
 	struct platform_device		*pdev;
 	struct proc_dir_entry		*pde;
+	int				udp_irq;
 };
 
 static inline struct at91_udc *to_udc(struct usb_gadget *g)