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/528x/config.c b/arch/m68k/platform/528x/config.c
index 7abe77a..08f397a 100644
--- a/arch/m68k/platform/528x/config.c
+++ b/arch/m68k/platform/528x/config.c
@@ -306,6 +306,7 @@
 static int __init init_BSP(void)
 {
 	mach_reset = m528x_cpu_reset;
+	mach_sched_init = hw_timer_init;
 	m528x_uarts_init();
 	m528x_fec_init();
 #if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)