[ARM] 4680/1: parentheses around NR_IRQS definition

If NR_IRQS is defined as a sum without surrounding parentheses, this may
lead to problems when used in multiplications. This may lead to problems
in:
arch/ia64/sn/kernel/irq.c:516
arch/x86/kernel/io_apic_32.c:693, 694, 699, 700
fs/proc/proc_misc.c:464
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

include/asm-arm/arch-ixp23xx/irqs.h

@@ -153,7 +153,7 @@
  */
 #define NR_IXP23XX_MACH_IRQS 		32
 
-#define NR_IRQS				NR_IXP23XX_IRQS + NR_IXP23XX_MACH_IRQS
+#define NR_IRQS				(NR_IXP23XX_IRQS + NR_IXP23XX_MACH_IRQS)
 
 #define IXP23XX_MACH_IRQ(irq) 		(NR_IXP23XX_IRQ + (irq))
 

include/asm-arm/arch-omap/board-innovator.h

@@ -37,7 +37,7 @@
 #define OMAP1510P1_EMIFF_PRI_VALUE		0x00
 
 #define NR_FPGA_IRQS		24
-#define NR_IRQS                 IH_BOARD_BASE + NR_FPGA_IRQS
+#define NR_IRQS                 (IH_BOARD_BASE + NR_FPGA_IRQS)
 
 #ifndef __ASSEMBLY__
 void fpga_write(unsigned char val, int reg);