iommu/vt-d, trivial: use defined macro instead of hardcoding
iommu/vt-d, trivial: use defined macro instead of hardcoding

Use defined macro instead of hardcoding in function set_ioapic_sid()
for readability.

Signed-off-by: Jiang Liu <68ee766e574f18b34b683085865827393efe88bd@linux.intel.com>
Signed-off-by: Joerg Roedel <4688a6871ff025801033b3c4b039d55a29f8f937@8bytes.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs