[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-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
index 4449d86..23f2c3a 100644
--- a/arch/arm/mach-omap1/fpga.c
+++ b/arch/arm/mach-omap1/fpga.c
@@ -86,7 +86,6 @@
 
 void innovator_fpga_IRQ_demux(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_desc *d;
 	u32 stat;
 	int fpga_irq;
 
@@ -99,8 +98,7 @@
 	     (fpga_irq < OMAP_FPGA_IRQ_END) && stat;
 	     fpga_irq++, stat >>= 1) {
 		if (stat & 1) {
-			d = irq_desc + fpga_irq;
-			desc_handle_irq(fpga_irq, d);
+			generic_handle_irq(fpga_irq);
 		}
 	}
 }