AP_InertialSensor: added OMNIBUSF7V2 INS sensors

a dual-IMU board

libraries/AP_InertialSensor/AP_InertialSensor.cpp

@@ -854,6 +854,9 @@ AP_InertialSensor::detect_backends(void)
                                              HAL_INS_DEFAULT_A_ROTATION));
 #elif HAL_INS_DEFAULT == HAL_INS_ICM20789_SPI
     ADD_BACKEND(AP_InertialSensor_Invensense::probe(*this, hal.spi->get_device("icm20789")));
+#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_CHIBIOS_OMNIBUSF7V2
+    ADD_BACKEND(AP_InertialSensor_Invensense::probe(*this, hal.spi->get_device("mpu6000"), ROTATION_NONE));
+    ADD_BACKEND(AP_InertialSensor_Invensense::probe(*this, hal.spi->get_device("mpu6500"), ROTATION_NONE));
 #elif HAL_INS_DEFAULT == HAL_INS_NONE
     // no INS device
 #else