[PC-1418] Portenta X8 Added to the IoT Cloud Compatibility List (#1394)

* Portenta X8 added to the compatible list

* Portenta X8 added to another list too

Author: mcmchris

content/arduino-cloud/01.getting-started/01.iot-cloud-getting-started/iot-cloud-getting-started.md

@@ -60,6 +60,7 @@ The following boards connect to the Arduino IoT Cloud via Wi-Fi.
 - [Portenta H7](https://store.arduino.cc/portenta-h7)
 - [Portenta H7 Lite Connected](https://store.arduino.cc/products/portenta-h7-lite-connected)
 - [Portenta Machine Control](https://store.arduino.cc/products/arduino-portenta-machine-control)
+- [Portenta X8](https://store.arduino.cc/products/portenta-x8)
 - [Nicla Vision](https://store.arduino.cc/products/nicla-vision)
 - [Opta](https://docs.arduino.cc/hardware/opta).
 - [UNO R4 WiFi](https://store.arduino.cc/products/uno-r4-wifi)

content/arduino-cloud/01.getting-started/02.technical-reference/iot-cloud-tech-ref.md

@@ -27,6 +27,7 @@ The following boards connect to the Arduino IoT Cloud via Wi-Fi.
 - [GIGA R1 WiFi](https://store.arduino.cc/products/giga-r1-wifi)
 - [Portenta H7](https://store.arduino.cc/portenta-h7)
 - [Portenta H7 Lite Connected](https://store.arduino.cc/products/portenta-h7-lite-connected)
+- [Portenta X8](https://store.arduino.cc/products/portenta-x8)
 - [Nicla Vision](https://store.arduino.cc/products/nicla-vision)
 - [UNO R4 WiFi](https://store.arduino.cc/products/uno-r4-wifi)
 - [Nano ESP32](https://store.arduino.cc/products/nano-esp32)