iio: proximity: ping: Replace OF specific code by device_get_match_data()

Instead of calling the OF specific API, use device_get_match_data().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220413183421.20427-1-andriy.shevchenko@linux.intel.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/proximity/ping.c

@@ -29,9 +29,8 @@
 #include <linux/err.h>
 #include <linux/gpio/consumer.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/property.h>
 #include <linux/sched.h>
@@ -288,7 +287,7 @@ static int ping_probe(struct platform_device *pdev)
 
 	data = iio_priv(indio_dev);
 	data->dev = dev;
-	data->cfg = of_device_get_match_data(dev);
+	data->cfg = device_get_match_data(dev);
 
 	mutex_init(&data->lock);
 	init_completion(&data->rising);