Input: ad7877, ad7879 - remove depreciated IRQF_SAMPLE_RANDOM flag

This patch removes depreciated IRQF_SAMPLE_RANDOM flags from
ad7877 and ad7879 touchscreen drivers.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index e4728a2..ecaeb7e 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -736,8 +736,8 @@
 
 	/* Request AD7877 /DAV GPIO interrupt */
 
-	err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
-			IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
+	err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING,
+			spi->dev.driver->name, ts);
 	if (err) {
 		dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
 		goto err_free_mem;
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index ea4c61d..5d8a703 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -448,8 +448,7 @@
 	ad7879_setup(ts);
 
 	err = request_irq(bus->irq, ad7879_irq,
-			  IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
-			  bus->dev.driver->name, ts);
+			  IRQF_TRIGGER_FALLING, bus->dev.driver->name, ts);
 
 	if (err) {
 		dev_err(&bus->dev, "irq %d busy?\n", bus->irq);