iio: accel: adxl372: use = { } instead of memset()

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

Signed-off-by: David Lechner <[e-mail]>
Reviewed-by: Nuno Sá <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Link: https://patch.msgid.link/20250[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/accel/adxl372.c

···
 
 static void adxl372_arrange_axis_data(struct adxl372_state *st, __be16 *sample)
 {
-	__be16	axis_sample[3];
+	__be16 axis_sample[3] = { };
 	int i = 0;
 
-	memset(axis_sample, 0, 3 * sizeof(__be16));
 	if (ADXL372_X_AXIS_EN(st->fifo_axis_mask))
 		axis_sample[i++] = sample[0];
 	if (ADXL372_Y_AXIS_EN(st->fifo_axis_mask))