staging: iio: iio_dummy_evgen: handle_simple_irq() build fix

handle_simple_irq() has dropped the first parameter, so fix it up in the
iio_dummy_evgen.c driver to prevent the build from breaking.

Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/iio/iio_dummy_evgen.c

@@ -86,7 +86,7 @@ static void iio_dummy_work_handler(struct irq_work *work)
 	struct iio_dummy_handle_irq *irq_handler;
 
 	irq_handler = container_of(work, struct iio_dummy_handle_irq, work);
-	handle_simple_irq(irq_handler->irq, irq_to_desc(irq_handler->irq));
+	handle_simple_irq(irq_to_desc(irq_handler->irq));
 }
 
 static int iio_dummy_evgen_create(void)