RTC: Get omap-rtc to compile

Get omap-rtc to compile.
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/char/omap-rtc.c

@@ -120,7 +120,7 @@ static const unsigned char days_in_mo[] =
  *	A very tiny interrupt handler. It runs with SA_INTERRUPT set.
  */
 
-irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t rtc_interrupt(int irq, void *dev_id)
 {
 	/*
 	 *	Either an alarm interrupt or update complete interrupt.