rockchip: saradc: remove double semi-colon

Remove double semi-colon that has been forgotten while adding the
driver. This is only a style fix since it doesn't change the
functionality of the driver.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/adc/rockchip-saradc.c b/drivers/adc/rockchip-saradc.c
index e464d33..e0cbab6 100644
--- a/drivers/adc/rockchip-saradc.c
+++ b/drivers/adc/rockchip-saradc.c
@@ -131,7 +131,7 @@
 	}
 
 	priv->data = data;
-	uc_pdata->data_mask = (1 << priv->data->num_bits) - 1;;
+	uc_pdata->data_mask = (1 << priv->data->num_bits) - 1;
 	uc_pdata->data_format = ADC_DATA_FORMAT_BIN;
 	uc_pdata->data_timeout_us = SARADC_TIMEOUT / 5;
 	uc_pdata->channel_mask = (1 << priv->data->num_channels) - 1;