m68k: add mcf5307 cpu support

Add Freescale MCF5307 cpu support.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
diff --git a/arch/m68k/include/asm/timer.h b/arch/m68k/include/asm/timer.h
index 2bdaddc..8fb3216 100644
--- a/arch/m68k/include/asm/timer.h
+++ b/arch/m68k/include/asm/timer.h
@@ -17,7 +17,8 @@
 /****************************************************************************/
 /* DMA Timer module registers */
 typedef struct dtimer_ctrl {
-#if defined(CONFIG_M5249) || defined(CONFIG_M5253) || defined(CONFIG_M5272)
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253) || \
+    defined(CONFIG_M5272) || defined(CONFIG_M5307)
 	u16 tmr;		/* 0x00 Mode register */
 	u16 res1;		/* 0x02 */
 	u16 trr;		/* 0x04 Reference register */