Update battery_daughter.py to use new displayio bus module

Author: dhalbert

examples/dash_display_client_examples/battery_daughter.py

@@ -17,6 +17,7 @@
 from adafruit_io.adafruit_io import IO_MQTT
 from adafruit_lc709203f import LC709203F
 from digitalio import DigitalInOut
+from i2cdisplaybus import I2CDisplayBus
 
 displayio.release_displays()
 
@@ -104,7 +105,7 @@ def message(client, feed_id, payload):
 print("Connecting to Adafruit IO...")
 io.connect()
 
-display_bus = displayio.I2CDisplay(board.I2C(), device_address=0x3C)
+display_bus = I2CDisplayBus(board.I2C(), device_address=0x3C)
 
 WIDTH = 128
 HEIGHT = 32