nmhw24: don't enable uart0 in DTS by default

- when using CAN shield, uart0 must not be enabled or I/O
  pins are locked by uart.
- this was a backport from NRSW that has to be checked

board/nm/nrhw24/board.c

@@ -1203,7 +1203,10 @@ int ft_board_setup(void *blob, bd_t *bd)
 	 * Enable uart1 (ttyS0) always as kernel needs it as fallback console, 
 	 * if (ttyS1) is not available as console.
 	 */
-	ft_enable_node(blob, "/ocp/serial@44e09000");
+	/* TODO: This does not work, as pins are then blocked for CAN
+	 * Double check with NRSW
+	 */
+	/* ft_enable_node(blob, "/ocp/serial@44e09000"); */
 
 	return 0;
 }