ARM: mach-shmobile: Bump up NR_IRQS to 1024

Increase NR_IRQS from 512 to 1024 on SH-Mobile ARM.

Needed to support vectors in the sh73a0 INTCS block.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/arm/mach-shmobile/include/mach/irqs.h

 #ifndef __ASM_MACH_IRQS_H
 #define __ASM_MACH_IRQS_H
 
-#define NR_IRQS         512
+#define NR_IRQS         1024
 
 /* GIC */
 #define gic_spi(nr)		((nr) + 32)