Add support for operating system OSE

Add OSE as operating system for mkimage and bootm.

Signed-off-by: Torkel Lundgren <torkel.lundgren@enea.com>
diff --git a/include/image.h b/include/image.h
index bcc08d1..18a9f0e 100644
--- a/include/image.h
+++ b/include/image.h
@@ -83,6 +83,7 @@
 #define IH_OS_ARTOS		19	/* ARTOS	*/
 #define IH_OS_UNITY		20	/* Unity OS	*/
 #define IH_OS_INTEGRITY		21	/* INTEGRITY	*/
+#define IH_OS_OSE		22	/* OSE		*/
 
 /*
  * CPU Architecture Codes (supported by Linux)