capabilities.igs has bit field of wrong size

[sometimesawake]

iommu-reference/libiommu/include/iommu_registers.h

Line 59 in 67c0618

uint64_t igs : 1; // IOMMU interrupt generation support.

•    uint64_t igs     : 1;      // IOMMU interrupt generation support.
  

•    uint64_t igs     : 2;      // IOMMU interrupt generation support.