m68knommu: modify timer init code to make it consistent with m68k code

With a few small changes we can make the m68knommu timer init code the
same as the m68k code. By using the mach_sched_init function pointer
and reworking the current timer initializers to keep track of the common
m68k timer_interrupt() handler we end up with almost identical code for
m68knommu.

This will allow us to more easily merge the mmu and non-mmu m68k time.c
in future patches.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c
index 71f4436..aa28392 100644
--- a/arch/m68k/platform/523x/config.c
+++ b/arch/m68k/platform/523x/config.c
@@ -274,6 +274,7 @@
 void __init config_BSP(char *commandp, int size)
 {
 	mach_reset = m523x_cpu_reset;
+	mach_sched_init = hw_timer_init;
 }
 
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