common/board_f.c: modify the macro to use get_clocks() more common

get_clocks() should not be limited by ESDHC.

Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com>
diff --git a/include/configs/MPC8308RDB.h b/include/configs/MPC8308RDB.h
index 551b72d..cfa5931 100644
--- a/include/configs/MPC8308RDB.h
+++ b/include/configs/MPC8308RDB.h
@@ -10,6 +10,7 @@
 #define __CONFIG_H
 
 #define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_FSL_CLK
 
 /*
  * High Level Configuration Options