timers: Rename timerlist infrastructure to timerqueue

Thomas pointed out a namespace collision between the new timerlist
infrastructure I introduced and the existing timer_list.c

So to avoid confusion, I've renamed the timerlist infrastructure
to timerqueue.

Reported-by: Thomas Gleixner <[email protected]>
Signed-off-by: John Stultz <[email protected]>
4 files changed