m68knommu: convert to using tracehook_report_syscall_*

Break up syscall_trace() into separate entry and exit routines that use
tracehook_report_syscall_entry() and tracehook_report_syscall_exit().

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68knommu/platform/68328/entry.S
index b3d8d73..27241e1 100644
--- a/arch/m68knommu/platform/68328/entry.S
+++ b/arch/m68knommu/platform/68328/entry.S
@@ -46,7 +46,7 @@
 	movel	#-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/
 	subql	#4,%sp
 	SAVE_SWITCH_STACK
-	jbsr	syscall_trace
+	jbsr	syscall_trace_enter
 	RESTORE_SWITCH_STACK
 	addql	#4,%sp
 	movel	%sp@(PT_OFF_ORIG_D0),%d1
@@ -60,7 +60,7 @@
 1:	movel	%d0,%sp@(PT_OFF_D0)	/* save the return value */
 	subql	#4,%sp			/* dummy return address */
 	SAVE_SWITCH_STACK
-	jbsr	syscall_trace
+	jbsr	syscall_trace_leave
 
 ret_from_signal:
 	RESTORE_SWITCH_STACK