iio: pressure: mprls0025pa: use = { } instead of memset()

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

The initialize of the cmd value is trivial so it can be moved to the
array initializer as well.

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-v1-25-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/pressure/mprls0025pa_i2c.c

@@ -44,10 +44,7 @@ static int mpr_i2c_write(struct mpr_data *data, const u8 cmd, const u8 unused)
 {
 	int ret;
 	struct i2c_client *client = to_i2c_client(data->dev);
-	u8 wdata[MPR_PKT_SYNC_LEN];
-
-	memset(wdata, 0, sizeof(wdata));
-	wdata[0] = cmd;
+	u8 wdata[MPR_PKT_SYNC_LEN] = { cmd };
 
 	ret = i2c_master_send(client, wdata, MPR_PKT_SYNC_LEN);
 	if (ret < 0)