Add 'license' command to U-Boot command line

The 'license' command includes the U-Boot license (GPLv2) into the
actual bootloader binary. The license text can be shown interactively
at the U-Boot commandline.

For products where the commandline can actually be accessed by the
end user, this helps to prevent inadvertent GPL violations, since the
GPLv2 license text can no longer be 'forgotten' to be included into
the product.

The 'license' command can be enabled by CONFIG_CMD_LICENSE.

Signed-off-by: Harald Welte <laforge@openmoko.org>
diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h
index 2cb2f67..d771696 100644
--- a/include/config_cmd_all.h
+++ b/include/config_cmd_all.h
@@ -50,6 +50,7 @@
 #define CONFIG_CMD_ITEST	/* Integer (and string) test	*/
 #define CONFIG_CMD_JFFS2	/* JFFS2 Support		*/
 #define CONFIG_CMD_KGDB		/* kgdb				*/
+#define CONFIG_CMD_LICENSE	/* console license display	*/
 #define CONFIG_CMD_LOADB	/* loadb			*/
 #define CONFIG_CMD_LOADS	/* loads			*/
 #define CONFIG_CMD_MEMORY	/* md mm nm mw cp cmp crc base loop mtest */