iommu=pt is a valid early param
iommu=pt is a valid early param

This avoids a "Malformed early option 'iommu'" warning on boot when 
trying to use pass-through mode.

Signed-off-by: Alex Williamson <7469de9b95ba379e2656fa9677689657c47a7690@hp.com>
Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs