m68k: Add generic board support for MCF547X/8X and MCF5445X

This patch adds generic board support for MCF547X/8X and MCF5445X.
It is based on the patch about common generic board support for
M68K architecture sent by Angelo.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
diff --git a/common/board_r.c b/common/board_r.c
index 826b94e..38be09b 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -759,7 +759,7 @@
 	initr_flash,
 #endif
 	INIT_FUNC_WATCHDOG_RESET
-#if defined(CONFIG_PPC)
+#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 	/* initialize higher level parts of CPU like time base and timers */
 	cpu_init_r,
 #endif