sparc: convert to clocksource_register_hz/khz

This converts the sparc clocksources to use clocksource_register_hz/khz

CC: "David S. Miller" <davem@davemloft.net>
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <johnstul@us.ibm.com>

arch/sparc/kernel/time_64.c

@@ -816,14 +816,12 @@ void __init time_init(void)
 		clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
 
 	clocksource_tick.name = tick_ops->name;
-	clocksource_calc_mult_shift(&clocksource_tick, freq, 4);
 	clocksource_tick.read = clocksource_tick_read;
 
+	clocksource_register_hz(&clocksource_tick, freq);
 	printk("clocksource: mult[%x] shift[%d]\n",
 	       clocksource_tick.mult, clocksource_tick.shift);
 
-	clocksource_register(&clocksource_tick);
-
 	sparc64_clockevent.name = tick_ops->name;
 	clockevents_calc_mult_shift(&sparc64_clockevent, freq, 4);