[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>

arch/arm/mach-pxa/lubbock.c

@@ -155,8 +155,7 @@ static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
 		GEDR(0) = GPIO_bit(0);	/* clear our parent irq */
 		if (likely(pending)) {
 			irq = LUBBOCK_IRQ(0) + __ffs(pending);
-			desc = irq_desc + irq;
-			desc_handle_irq(irq, desc);
+			generic_handle_irq(irq);
 		}
 		pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
 	} while (pending);