fix(console): Default read_func to the read function

To make sure the static function pointer read_func is never NUL,
set its default value to th read function instead of setting it
to NULL pointer.

components/console/linenoise/linenoise.c

@@ -238,7 +238,7 @@ static void flushWrite(void) {
     fsync(fileno(stdout));
 }
 
-static linenoise_read_bytes_fn read_func = NULL;
+static linenoise_read_bytes_fn read_func = read;
 void linenoiseSetReadFunction(linenoise_read_bytes_fn read_fn)
 {
     read_func = read_fn;