iio: accel: adxl355: use fwnode_irq_get_byname()

Use the generic fwnode_irq_get_byname() in place of of_irq_get_byname()
to get the IRQ number from the interrupt pin.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Link: https://lore.kernel.org/r/20211109200840.135019-3-puranjay12@gmail.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/accel/adxl355_core.c

@@ -18,7 +18,7 @@
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
-#include <linux/of_irq.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/units.h>
 
@@ -745,10 +745,7 @@ int adxl355_core_probe(struct device *dev, struct regmap *regmap,
 		return ret;
 	}
 
-	/*
-	 * TODO: Would be good to move it to the generic version.
-	 */
-	irq = of_irq_get_byname(dev->of_node, "DRDY");
+	irq = fwnode_irq_get_byname(dev_fwnode(dev), "DRDY");
 	if (irq > 0) {
 		ret = adxl355_probe_trigger(indio_dev, irq);
 		if (ret)