davinci: Integrate cp_intc support into low-level irq code

Integrate the Common Platform Interrupt Controller (cp_intc)
support into the low-level irq handling for davinci and similar
platforms.  Do it such that support for cp_intc and the original
aintc can coexist in the same kernel binary.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index b773d92..22db677 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -18,6 +18,7 @@
 
 extern void davinci_irq_init(void);
 extern void __iomem *davinci_intc_base;
+extern int davinci_intc_type;
 
 /* parameters describe VBUS sourcing for host mode */
 extern void setup_usb(unsigned mA, unsigned potpgt_msec);