common: cli: avoid memory leak

Whether CONFIG_SYS_HUSH_PARSER is defined or not, should always
check to free 'buff' to avoid memory leak.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>

common/cli.c

@@ -103,9 +103,9 @@ int run_command_list(const char *cmd, int len, int flag)
 	 * is pretty rare.
 	 */
 	rcode = cli_simple_run_command_list(buff, flag);
+#endif
 	if (need_buff)
 		free(buff);
-#endif
 
 	return rcode;
 }