powerpc/time: move timer_broadcast_interrupt prototype to asm/time.h

Interrupt handler prototypes are going to be rearranged in a
future patch, so tidy this out of the way first.

Signed-off-by: Nicholas Piggin <[e-mail]>
Signed-off-by: Michael Ellerman <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/powerpc/include/asm/hw_irq.h

···
 extern void replay_soft_interrupts(void);
 
 extern void timer_interrupt(struct pt_regs *);
-extern void timer_broadcast_interrupt(void);
 extern void performance_monitor_exception(struct pt_regs *regs);
 extern void WatchdogException(struct pt_regs *regs);
 extern void unknown_exception(struct pt_regs *regs);

arch/powerpc/include/asm/time.h

···
 /* Convert timebase ticks to nanoseconds */
 unsigned long long tb_to_ns(unsigned long long tb_ticks);
 
+void timer_broadcast_interrupt(void);
+
 /* SPLPAR */
 void accumulate_stolen_time(void);