iio: tsl2583: make array large enough

This array is supposed to have 10 elements. Smatch complains that with
the current code we can have n == max_ints and read beyond the end of
the array.

Fixes: ac4f6eee8fe8 ("staging: iio: TAOS tsl258x: Device driver")
Signed-off-by: Dan Carpenter <[e-mail]>
Acked-by: Brian Masney <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/light/tsl2583.c

···
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
 	const unsigned int max_ints = TSL2583_MAX_LUX_TABLE_ENTRIES * 3;
-	int value[TSL2583_MAX_LUX_TABLE_ENTRIES * 3];
+	int value[TSL2583_MAX_LUX_TABLE_ENTRIES * 3 + 1];
 	int ret = -EINVAL;
 	unsigned int n;