Add submission # 7210

#7210

Author: ArduinoBot

registry.txt

@@ -8553,3 +8553,4 @@ https://github.com/bull-m/BULLM_ExtendModule.git|Contributed|BULLM_ExtendModule
 https://github.com/Jakkapan-a/AssuraVisionSerial.git|Contributed|AssuraVisionSerial
 https://github.com/atestb/MCP4151-Digital-Potentiometer.git|Contributed|MCP4151 Digital Potentiometer
 https://github.com/AIS-DeviceIntegration/AIS_4G_EXTENSION_BOARD.git|Contributed|AIS_4G_EXTENSION_BOARD
+https://github.com/adafruit/WiFiNINA.git|Recommended|WiFiNINA_-_Adafruit_Fork