m68k: set arch_gettimeoffset directly

remove m68k's mach_gettimeoffset function pointer, and instead directly
set the arch_gettimeoffset function pointer. This requires multiplying
all function results by 1000, since the removed m68k_gettimeoffset() did
this. Also, s/unsigned long/u32/ just to make the function prototypes
exactly match that of arch_gettimeoffset.

Cc: Joshua Thompson <funaho@jurai.org>
Cc: Sam Creasey <sammy@sammy.net>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Phil Blundell <philb@gnu.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c
index 29a71be..749543b 100644
--- a/arch/m68k/hp300/time.c
+++ b/arch/m68k/hp300/time.c
@@ -46,7 +46,7 @@
 	return vector(irq, NULL);
 }
 
-unsigned long hp300_gettimeoffset(void)
+u32 hp300_gettimeoffset(void)
 {
   /* Read current timer 1 value */
   unsigned char lsb, msb1, msb2;
@@ -59,7 +59,7 @@
     /* A carry happened while we were reading.  Read it again */
     lsb = in_8(CLOCKBASE + 7);
   ticks = INTVAL - ((msb2 << 8) | lsb);
-  return (USECS_PER_JIFFY * ticks) / INTVAL;
+  return ((USECS_PER_JIFFY * ticks) / INTVAL) * 1000;
 }
 
 void __init hp300_sched_init(irq_handler_t vector)