[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/mach-ns9xxx/board-a9m9750dev.c b/arch/arm/mach-ns9xxx/board-a9m9750dev.c
index a22a608..b45bb3b 100644
--- a/arch/arm/mach-ns9xxx/board-a9m9750dev.c
+++ b/arch/arm/mach-ns9xxx/board-a9m9750dev.c
@@ -86,13 +86,10 @@
 
 	while (stat != 0) {
 		int irqno = fls(stat) - 1;
-		struct irq_desc *fpgadesc;
 
 		stat &= ~(1 << irqno);
 
-		fpgadesc = irq_desc + FPGA_IRQ(irqno);
-
-		desc_handle_irq(FPGA_IRQ(irqno), fpgadesc);
+		generic_handle_irq(FPGA_IRQ(irqno));
 	}
 
 	desc->chip->unmask(irq);