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>

include/cli_hush.h

@@ -0,0 +1,26 @@
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _CLI_HUSH_H_
+#define _CLI_HUSH_H_
+
+#define FLAG_EXIT_FROM_LOOP 1
+#define FLAG_PARSE_SEMICOLON (1 << 1)	  /* symbol ';' is special for parser */
+#define FLAG_REPARSING       (1 << 2)	  /* >=2nd pass */
+
+extern int u_boot_hush_start(void);
+extern int parse_string_outer(const char *, int);
+extern int parse_file_outer(void);
+
+int set_local_var(const char *s, int flg_export);
+void unset_local_var(const char *name);
+char *get_local_var(const char *s);
+
+#if defined(CONFIG_HUSH_INIT_VAR)
+extern int hush_init_var (void);
+#endif
+#endif