[ARM] 4483/1: ns9xxx: fix three sparse warnings: symbol 'xyz' was not declared.

make ns9xxx_ack_irq_functions static and add one include to get declarations
for ns9xxx_map_io and ns9xxx_init_machine.

Signed-off-by: Uwe Kleine-König <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/mach-ns9xxx/generic.c

···
 #include <asm/arch-ns9xxx/regs-mem.h>
 #include <asm/arch-ns9xxx/board.h>
 
+#include "generic.h"
+
 static struct map_desc standard_io_desc[] __initdata = {
 	{ /* BBus */
 		.virtual = io_p2v(0x90000000),

arch/arm/mach-ns9xxx/irq.c

···
 	SYS_TC(irq - IRQ_TIMER0) = tc;
 }
 
-void (*ns9xxx_ack_irq_functions[NR_IRQS])(unsigned int) = {
+static void (*ns9xxx_ack_irq_functions[NR_IRQS])(unsigned int) = {
 	[IRQ_TIMER0] = ns9xxx_ack_irq_timer,
 	[IRQ_TIMER1] = ns9xxx_ack_irq_timer,
 	[IRQ_TIMER2] = ns9xxx_ack_irq_timer,