ioapic: fix typo in irqfd check

Not registering the IEC notifier results in a regression with interrupt remapping
when running a VM configured with an intel-iommu device and an assigned
PCI VF. At boot, Linux complains with :

[   15.416794] __common_interrupt: 2.37 No irq handler for vector

Reported-by: Cédric Le Goater <clg@redhat.com>
Analyzed-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed