genirq/debugfs: Add missing sanity checks to interrupt injection

mainline inclusion
from mainline-v5.6
commit a740a423
category: bugfix
bugzilla: 32425
CVE: NA

-------------------

Interrupts cannot be injected when the interrupt is not activated and when
a replay is already in progress.

Fixes: 536e2e34 ("genirq/debugfs: Triggering of interrupts from userspace")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lkml.kernel.org/r/20200306130623.500019114@linutronix.de


Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>