message: integration_tests: remaining dc to mavsdk rename
diff: @@ -99,14 +99,14 @@ TEST(HardwareTest, CalibrationMagnetometer)
  TEST(HardwareTest, CalibrationLevelHorizon)
  {
  - Mavsdk dc;
  + Mavsdk mavsdk;
  - ConnectionResult ret = dc.add_udp_connection();
  + ConnectionResult ret = mavsdk.add_udp_connection();
  ASSERT_EQ(ret, ConnectionResult::Success);
  // Wait for system to connect via heartbeat.
  std::this_thread::sleep_for(std::chrono::seconds(2));
  - auto system = dc.systems().at(0);
  + auto system = mavsdk.systems().at(0);
  ASSERT_TRUE(system->has_autopilot());
  auto calibration = std::make_shared<Calibration>(system);
  