staging:iio:ad7606: Remove incorrect kernel doc annotations

The ad7606_chip_info struct does not have the lock & name fields. Remove
the kernel documentation annotations for it.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/adc/ad7606.h

@@ -11,10 +11,8 @@
 
 /**
  * struct ad7606_chip_info - chip specific information
- * @name:		identification string for chip
  * @channels:		channel specification
  * @num_channels:	number of channels
- * @lock		protect sensor state
  */
 
 struct ad7606_chip_info {