drivers/char: use nr_irqs

convert them to nr_irqs.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --cc drivers/char/hpet.c
Simple merge

diff --cc drivers/char/random.c
Simple merge

diff --cc drivers/char/vr41xx_giu.c
Simple merge