genirq: cleanup the sparseirq modifications

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --cc kernel/irq/chip.c
Simple merge

diff --cc kernel/irq/handle.c
Simple merge

diff --cc kernel/irq/manage.c
Simple merge

diff --cc kernel/irq/proc.c
Simple merge

diff --cc kernel/irq/spurious.c
Simple merge