Added RP2040 support

Author: cmaglie

extras/integration_test/RpcClientTest/RpcClientTest.ino

@@ -6,6 +6,9 @@
 #elif ARDUINO_GIGA
 #define MSGPACKRPC Serial1   // MsgPack RPC runs on Serial1
 #define DEBUG      SerialUSB // Debug and upload port is Serial
+#elif ARDUINO_NANO_RP2040_CONNECT
+#define MSGPACKRPC Serial1   // MsgPack RPC runs on Serial1
+#define DEBUG      SerialUSB // Debug and upload port is Serial
 #else
 #error "Unsupported board"
 #endif

extras/integration_test/RpcClientTest/RpcClient_test.go

@@ -160,13 +160,20 @@ func getFQBNAndPorts(t *testing.T) (fqbn string, rpcPort string, uploadPort stri
 				checkFQBN(board.Fqbn)
 				uploadPort = port.Port.Address
 			}
+			if board.Fqbn == "arduino:mbed_nano:nanorp2040connect" {
+				checkFQBN(board.Fqbn)
+				uploadPort = port.Port.Address
+			}
 		}
 	}
 	if rpcPort == "" {
 		for _, port := range cliResult.DetectedPorts {
 			if port.Port.Properties.Vid == "0x0483" && port.Port.Properties.Pid == "0x374B" {
 				rpcPort = port.Port.Address
 			}
+			if port.Port.Properties.Vid == "0x1A86" && port.Port.Properties.Pid == "0x55D4" {
+				rpcPort = port.Port.Address
+			}
 		}
 	}
 	require.NotEmpty(t, uploadPort, "Upload port not found")