include: Add missing headers in a few instances

A few headers rely on indirect inclusion of <linux/types.h> or
<linux/kernel.h> so add them directly. In the case of <netdev.h> add a
"struct bd_info;" as well rather than the large header chain to resolve
that.

Signed-off-by: Tom Rini <trini@konsulko.com>

include/netdev.h

@@ -10,9 +10,12 @@
 
 #ifndef _NETDEV_H_
 #define _NETDEV_H_
+
+#include <linux/types.h>
 #include <phy_interface.h>
 
 struct udevice;
+struct bd_info;
 
 /*
  * Board and CPU-specific initialization functions