hd44780_spi: added lcd support to the mightyboard (#4121)

Signed-off-by: Marc-André Denis <marcadenis@msn.com>

klippy/extras/display/display.py

@@ -6,7 +6,7 @@
 #
 # This file may be distributed under the terms of the GNU GPLv3 license.
 import logging, os, ast
-from . import hd44780, st7920, uc1701, menu
+from . import hd44780, hd44780_spi, st7920, uc1701, menu
 
 # Normal time between each screen redraw
 REDRAW_TIME = 0.500
@@ -17,6 +17,7 @@ LCD_chips = {
     'st7920': st7920.ST7920, 'emulated_st7920': st7920.EmulatedST7920,
     'hd44780': hd44780.HD44780, 'uc1701': uc1701.UC1701,
     'ssd1306': uc1701.SSD1306, 'sh1106': uc1701.SH1106,
+    'hd44780_spi': hd44780_spi.hd44780_spi
 }
 
 # Storage of [display_template my_template] config sections