staging: iio: ad7780: add new copyright holder

This patch adds a new copyright holder to the ad7780 driver.
Signed-off-by: Renato Lui Geh <renatogeh@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/adc/ad7780.c

@@ -3,6 +3,7 @@
  * AD7170/AD7171 and AD7780/AD7781 SPI ADC driver
  *
  * Copyright 2011 Analog Devices Inc.
+ * Copyright 2019 Renato Lui Geh
  */
 
 #include <linux/interrupt.h>