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/common/image.c b/common/image.c
index fcb938b..3a2f25e 100644
--- a/common/image.c
+++ b/common/image.c
@@ -103,6 +103,7 @@
 	{	IH_OS_LYNXOS,	"lynxos",	"LynxOS",		},
 #endif
 	{	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
+	{	IH_OS_OSE,	"ose",		"Enea OSE",		},
 	{	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
 	{	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
 #if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)