Fix problems with SNTP support;
enable SNTP support in some boards.
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index 25a3cc4..fbddb12 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -27,6 +27,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <asm/byteorder.h>
 
 #if (CONFIG_COMMANDS & CFG_CMD_USB)