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>
diff --git a/include/u-boot/sha1.h b/include/u-boot/sha1.h
index 09fee59..c1e9f67 100644
--- a/include/u-boot/sha1.h
+++ b/include/u-boot/sha1.h
@@ -14,6 +14,8 @@
 #ifndef _SHA1_H
 #define _SHA1_H
 
+#include <linux/types.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif