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/common.c b/arch/arm/mach-davinci/common.c
index 169ec73..61ede19 100644
--- a/arch/arm/mach-davinci/common.c
+++ b/arch/arm/mach-davinci/common.c
@@ -25,6 +25,7 @@
 EXPORT_SYMBOL(davinci_soc_info);
 
 void __iomem *davinci_intc_base;
+int davinci_intc_type;
 
 void davinci_get_mac_addr(struct memory_accessor *mem_acc, void *context)
 {
@@ -99,6 +100,7 @@
 	}
 
 	davinci_intc_base = davinci_soc_info.intc_base;
+	davinci_intc_type = davinci_soc_info.intc_type;
 	return;
 
 err: