arch/x86: Make sure PCIE allocated IRTEs are tighten to irq/vector

As all interruption need to go through VT-D, calling vt-d remap will
happen on lower level as seen next, so make sure all pcie related
irq/vector get tighten to their respective allocated IRTE.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>