Remove unnnecessary #include <linux/types.h> from include/asm-*/u-boot.h
diff --git a/include/asm-microblaze/u-boot.h b/include/asm-microblaze/u-boot.h
index 4531e72..e2035bd 100644
--- a/include/asm-microblaze/u-boot.h
+++ b/include/asm-microblaze/u-boot.h
@@ -20,6 +20,13 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
+ *
+ ********************************************************************
+ * NOTE: This header file defines an interface to U-Boot. Including
+ * this (unmodified) header file in another file is considered normal
+ * use of U-Boot, and does *not* fall under the heading of "derived
+ * work".
+ ********************************************************************
  */
 
 #ifndef _U_BOOT_H_