Drivers: st7789_4bit add support for DFRobot 172x320

DRIVERS.md

@@ -504,6 +504,8 @@ Orientation (values for `disp_mode`):
 Display types (values for `display`):  
 `GENERIC` For Adafruit displays.  
 `TDISPLAY` For the TTGO T-Display and Waveshare Pico LCD.  
+`PI_PICO_LCD_2` Waveshare Pico LCD 2 determined by Mike Wilson.
+`DFR0995` DFR0995 Contributed by @EdgarKluge
 
 ### init_spi
 

drivers/st7789/st7789_4bit.py

@@ -32,6 +32,7 @@ PORTRAIT = 4
 GENERIC = (0, 0, 0)
 TDISPLAY = (52, 40, 1)
 PI_PICO_LCD_2 = (0, 0, 1)  # Waveshare Pico LCD 2 determined by Mike Wilson.
+DFR0995 = (34, 0, 0) # DFR0995 Contributed by @EdgarKluge
 
 @micropython.viper
 def _lcopy(dest:ptr16, source:ptr8, lut:ptr16, length:int):