m68k: fix broken buildman m68k

fix 19/48 broken board compilations, due to a now too smal 16-bit
relative jump

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/m68k/cpu/mcf523x/start.S b/arch/m68k/cpu/mcf523x/start.S
index 8a23e72..1702f98 100644
--- a/arch/m68k/cpu/mcf523x/start.S
+++ b/arch/m68k/cpu/mcf523x/start.S
@@ -141,8 +141,12 @@
 
 	move.l #__got_start, %a5	/* put relocation table address to a5 */
 
-	bsr cpu_init_f			/* run low-level CPU init code (from flash) */
-	bsr board_init_f		/* run low-level board init code (from flash) */
+	/* run low-level CPU init code (from flash) */
+	move.l #cpu_init_f, %a1
+	jsr (%a1)
+	/* run low-level board init code (from flash) */
+	move.l #board_init_f, %a1
+	jsr (%a1)
 
 	/* board_init_f() does not return */