ARM:zynq: Correct __udelay to use lldiv

Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/zynq/timer.c

@@ -107,8 +107,7 @@ void __udelay(unsigned long usec)
 	if (usec == 0)
 		return;
 
-	countticks = (u32) (((unsigned long long) TIMER_TICK_HZ * usec) /
-								1000000);
+	countticks = lldiv(TIMER_TICK_HZ * usec, 1000000);
 
 	/* decrementing timer */
 	timeend = readl(&timer_base->counter) - countticks;