[ARM] 5298/1: Drop desc_handle_irq()

desc_handle_irq() was declared as obsolete since long ago.
Replace it with generic_handle_irq()

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 9e1341e..960040a 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -1051,13 +1051,10 @@
 
 		gpio_irq = bank->virtual_irq_start;
 		for (; isr != 0; isr >>= 1, gpio_irq++) {
-			struct irq_desc *d;
-
 			if (!(isr & 1))
 				continue;
-			d = irq_desc + gpio_irq;
 
-			desc_handle_irq(gpio_irq, d);
+			generic_handle_irq(gpio_irq);
 		}
 	}
 	/* if bank has any level sensitive GPIO pin interrupt