IntelSiliconPkg/include: Add VTD_INFO PPI.
IntelSiliconPkg/include: Add VTD_INFO PPI.

This VTD_INFO_PPI is to provide VTD information in PEI.
As such, we can have a generic VTd driver.

It is a lightweight version DMAR table, but it does
not contain PCI device information.

Cc: Star Zeng <5c6bb72efe464613af94e84c05522a361b23844a@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <364a90bfebd1f362ebb7b48e4bf8ec010adef203@intel.com>
Reviewed-by: Star Zeng <5c6bb72efe464613af94e84c05522a361b23844a@intel.com>

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2