iio: light sensor: Fix a panic in the tsl2563 driver.

Add the required read/write_raw functions to the tsl2563_info_no_irq data
structure. This structure is used insted of tsl2563_info when the I2C client
has no IRQ.
The absence of these functions causes a panic when reading or writing the
created sysfs files.

Signed-off-by: Bryan Freed <[e-mail]>
Acked-by: Jonathan Cameron <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/iio/light/tsl2563.c

···
 
 static const struct iio_info tsl2563_info_no_irq = {
 	.driver_module = THIS_MODULE,
+	.read_raw = &tsl2563_read_raw,
+	.write_raw = &tsl2563_write_raw,
 };
 
 static const struct iio_info tsl2563_info = {