tick/sched: Fix build failure for CONFIG_NO_HZ_COMMON=n

In configurations with CONFIG_TICK_ONESHOT but no CONFIG_NO_HZ or
CONFIG_HIGH_RES_TIMERS, tick_sched_timer_dying() is stubbed out,
but still defined as a global function as well:

kernel/time/tick-sched.c:1599:6: error: redefinition of 'tick_sched_timer_dying'
 1599 | void tick_sched_timer_dying(int cpu)
      |      ^
kernel/time/tick-sched.h:111:20: note: previous definition is here
  111 | static inline void tick_sched_timer_dying(int cpu) { }
      |                    ^

This configuration only appears with ARM CONFIG_ARCH_BCM_MOBILE,
which should not actually select CONFIG_TICK_ONESHOT.

Adjust the #ifdef for the stub to match the condition for building the
tick-sched.c file for consistency with the definition and to avoid
the build regression.

Fixes: 3aedb7fc

 ("tick/sched: Remove useless oneshot ifdeffery")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240228123850.3499024-1-arnd@kernel.org