ARC: [Review] Multi-platform image #5: NR_IRQS defined by ARC core

For now this will suffice for all platforms, later exotic ones needs to
get this from DeviceTree

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>

arch/arc/include/asm/irq.h

@@ -9,6 +9,8 @@
 #ifndef __ASM_ARC_IRQ_H
 #define __ASM_ARC_IRQ_H
 
+#define NR_IRQS		32
+
 /* Platform Independent IRQs */
 #define TIMER0_IRQ      3
 #define TIMER1_IRQ      4