modifies initcode and libwrap for new mnrs/ehrenberg vp

libwrap/sys/read.c

@@ -29,7 +29,7 @@ ssize_t __wrap_read(int fd, void* ptr, size_t len)
     if (isatty(fd)) {
 #if defined(BOARD_ehrenberg)
         for (current = (uint8_t *)ptr;
-            (current < ((uint8_t *)ptr) + len) && (uart_get_rx_avail(uart) > 0);
+            (current < ((uint8_t *)ptr) + len) && (get_uart_rx_tx_reg_rx_avail(uart) > 0);
             current ++) {
           *current = uart_read(uart);
           result++;