Rename hush to cli_hush

Hush is a command-line interpreter, so rename it to make that clearer.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/keymile/common/ivm.c b/board/keymile/common/ivm.c
index f0e91bb..bffc08b 100644
--- a/board/keymile/common/ivm.c
+++ b/board/keymile/common/ivm.c
@@ -6,7 +6,7 @@
  */
 
 #include <common.h>
-#include <hush.h>
+#include <cli_hush.h>
 #include <i2c.h>
 #include "common.h"