iio: chemical: scd30: 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>
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-v1-13-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/chemical/scd30_core.c

@@ -587,15 +587,14 @@ static irqreturn_t scd30_trigger_handler(int irq, void *p)
 	struct {
 		int data[SCD30_MEAS_COUNT];
 		aligned_s64 ts;
-	} scan;
+	} scan = { };
 	int ret;
 
 	mutex_lock(&state->lock);
 	if (!iio_trigger_using_own(indio_dev))
 		ret = scd30_read_poll(state);
 	else
 		ret = scd30_read_meas(state);
-	memset(&scan, 0, sizeof(scan));
 	memcpy(scan.data, state->meas, sizeof(state->meas));
 	mutex_unlock(&state->lock);
 	if (ret)