iio: pressure: zpa2326: 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-v1-26-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/pressure/zpa2326.c

@@ -583,11 +583,9 @@ static int zpa2326_fill_sample_buffer(struct iio_dev               *indio_dev,
 		u32 pressure;
 		u16 temperature;
 		aligned_s64 timestamp;
-	}   sample;
+	} sample = { };
 	int err;
 
-	memset(&sample, 0, sizeof(sample));
-
 	if (test_bit(0, indio_dev->active_scan_mask)) {
 		/* Get current pressure from hardware FIFO. */
 		err = zpa2326_dequeue_pressure(indio_dev, &sample.pressure);