blackfin: fixing warning by including proper headers

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>

arch/blackfin/lib/board.c

diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c
index 17d1f46..392d72d 100644
--- a/arch/blackfin/lib/board.c
+++ b/arch/blackfin/lib/board.c
@@ -19,6 +19,7 @@
 #include <net.h>
 #include <status_led.h>
 #include <version.h>
+#include <watchdog.h>
 
 #include <asm/cplb.h>
 #include <asm/mach-common/bits/mpu.h>

arch/blackfin/lib/clocks.c

diff --git a/arch/blackfin/lib/clocks.c b/arch/blackfin/lib/clocks.c
index 97795e1..7ed56a7 100644
--- a/arch/blackfin/lib/clocks.c
+++ b/arch/blackfin/lib/clocks.c
@@ -36,7 +36,10 @@
 u_long get_cclk(void)
 {
 	static u_long cached_cclk_pll_div, cached_cclk;
-	u_long div, csel, ssel;
+	u_long div, csel;
+#ifndef CGU_DIV
+	u_long ssel;
+#endif
 
 	if (pll_is_bypassed())
 		return CONFIG_CLKIN_HZ;

board/bf609-ezkit/bf609-ezkit.c

diff --git a/board/bf609-ezkit/bf609-ezkit.c b/board/bf609-ezkit/bf609-ezkit.c
index 0388226..cfc64fe 100644
--- a/board/bf609-ezkit/bf609-ezkit.c
+++ b/board/bf609-ezkit/bf609-ezkit.c
@@ -10,6 +10,7 @@
 #include <netdev.h>
 #include <asm/blackfin.h>
 #include <asm/io.h>
+#include <asm/sdh.h>
 #include <asm/portmux.h>
 #include "soft_switch.h"