clocksource: m86k: Convert to clocksource_register_hz/khz

Updated to merge the valid bits of the two m68k patches.

This converts the m86k clocksources to use clocksource_register_hz/khz

This is untested, so any assistance in testing would be appreciated!

CC: Geert Uytterhoeven <geert@linux-m68k.org>
CC: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68k/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c
index 6a85daf..b7f822b 100644
--- a/arch/m68k/platform/coldfire/sltimers.c
+++ b/arch/m68k/platform/coldfire/sltimers.c
@@ -114,7 +114,6 @@
 	.name	= "slt",
 	.rating	= 250,
 	.read	= mcfslt_read_clk,
-	.shift	= 20,
 	.mask	= CLOCKSOURCE_MASK(32),
 	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
 };
@@ -136,8 +135,7 @@
 
 	setup_irq(MCF_IRQ_TIMER, &mcfslt_timer_irq);
 
-	mcfslt_clk.mult = clocksource_hz2mult(MCF_BUSCLK, mcfslt_clk.shift);
-	clocksource_register(&mcfslt_clk);
+	clocksource_register_hz(&mcfslt_clk, MCF_BUSCLK);
 
 #ifdef CONFIG_HIGHPROFILE
 	mcfslt_profile_init();