mips: convert to clocksource_register_hz/khz

This converts the mips clocksources to use clocksource_register_hz/khz

CC: Ralf Baechle <ralf@linux-mips.org>
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <johnstul@us.ibm.com>

arch/mips/kernel/csrc-sb1250.c

@@ -65,6 +65,5 @@ void __init sb1250_clocksource_init(void)
 		     IOADDR(A_SCD_TIMER_REGISTER(SB1250_HPT_NUM,
 						 R_SCD_TIMER_CFG)));
 
-	clocksource_set_clock(cs, V_SCD_TIMER_FREQ);
-	clocksource_register(cs);
+	clocksource_register_hz(cs, V_SCD_TIMER_FREQ);
 }