iio: light: bh1745: 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-v1-18-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/light/bh1745.c

@@ -740,14 +740,12 @@ static irqreturn_t bh1745_trigger_handler(int interrupt, void *p)
 	struct {
 		u16 chans[4];
 		aligned_s64 timestamp;
-	} scan;
+	} scan = { };
 	u16 value;
 	int ret;
 	int i;
 	int j = 0;
 
-	memset(&scan, 0, sizeof(scan));
-
 	iio_for_each_active_channel(indio_dev, i) {
 		ret = regmap_bulk_read(data->regmap, BH1745_RED_LSB + 2 * i,
 				       &value, 2);