dt-bindings: iio: imu: add icm20602 bindings to mpu6050

Adding the invensense ICM-20602 to the compatible list of the mpu6050
driver
Signed-off-by: NRandolph Maaßen <gaireg@gaireg.de>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt

@@ -11,6 +11,7 @@ Required properties:
 		"invensense,mpu9250"
 		"invensense,mpu9255"
 		"invensense,icm20608"
+		"invensense,icm20602"
  - reg : the I2C address of the sensor
  - interrupts: interrupt mapping for IRQ. It should be configured with flags
    IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or