parisc: smp: Add declaration for start_cpu_itimer()

Avoid gcc warning about missing prototype for start_cpu_itimer().
Signed-off-by: Helge Deller <deller@gmx.de>

arch/parisc/include/asm/processor.h

@@ -295,6 +295,7 @@ extern unsigned int toc_handler_csum;
 extern void do_cpu_irq_mask(struct pt_regs *);
 extern irqreturn_t timer_interrupt(int, void *);
 extern irqreturn_t ipi_interrupt(int, void *);
+extern void start_cpu_itimer(void);
 
 /* called from assembly code: */
 extern void start_parisc(void);

arch/parisc/kernel/smp.c

@@ -271,8 +271,6 @@ void arch_send_call_function_single_ipi(int cpu)
 static void
 smp_cpu_init(int cpunum)
 {
-	extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
-
 	/* Set modes and Enable floating point coprocessor */
 	init_per_cpu(cpunum);