ARM: integrator/versatile: consolidate FPGA IRQ handling code

Consolidate the FPGA IRQ handling code.  Integrator/AP and Versatile
have one FPGA-based IRQ handler each.  Integrator/CP has three.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/plat-versatile/Makefile b/arch/arm/plat-versatile/Makefile
index de6f42f..41f57f4 100644
--- a/arch/arm/plat-versatile/Makefile
+++ b/arch/arm/plat-versatile/Makefile
@@ -1,5 +1,6 @@
 obj-y	:= clock.o
 obj-$(CONFIG_PLAT_VERSATILE_CLCD) += clcd.o
+obj-$(CONFIG_PLAT_VERSATILE_FPGA_IRQ) += fpga-irq.o
 obj-$(CONFIG_PLAT_VERSATILE_LEDS) += leds.o
 obj-$(CONFIG_PLAT_VERSATILE_SCHED_CLOCK) += sched-clock.o