iio: light: add missing vcnl4040 of_compatible

Commit 5a441aa ("iio: light: vcnl4000 add support for the VCNL4040
proximity and light sensor") added the support for the vcnl4040 but
forgot to add the of_compatible. Fix this by adding it now.

Signed-off-by: Marco Felsch <[email protected]>
Fixes: 5a441aa ("iio: light: vcnl4000 add support for the VCNL4040 proximity and light sensor")
Reviewed-by: Angus Ainslie (Purism) [email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

Author: Marco Felsch

drivers/iio/light/vcnl4000.c

@@ -408,6 +408,10 @@ static const struct of_device_id vcnl_4000_of_match[] = {
 		.compatible = "vishay,vcnl4020",
 		.data = (void *)VCNL4010,
 	},
+	{
+		.compatible = "vishay,vcnl4040",
+		.data = (void *)VCNL4040,
+	},
 	{
 		.compatible = "vishay,vcnl4200",
 		.data = (void *)VCNL4200,