iio: light: veml6030: use = { } instead of memset()

Use { } instead of memset() to zero-initialize stack memory to simplify
the code.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Tested-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-21-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/light/veml6030.c

@@ -892,9 +892,7 @@ static irqreturn_t veml6030_trigger_handler(int irq, void *p)
 	struct {
 		u16 chans[2];
 		aligned_s64 timestamp;
-	} scan;
-
-	memset(&scan, 0, sizeof(scan));
+	} scan = { };
 
 	iio_for_each_active_channel(iio, ch) {
 		ret = regmap_read(data->regmap, VEML6030_REG_DATA(ch),