MdePkg/include: Update DMAR definitions to Intel VT-d spec ver4.0

MdePkg/include: Update DMAR definitions to Intel VT-d spec ver4.0

Updated DMAR definitions accordingly to changes in Intel(R) Virtualization
Technology for Directed I/O (VT-D) Architecture Specification ver4.0.

Added new definition of remapping structure - SIDP. The SoC Integrated
Device Property (SIDP) reporting structure identifies devices that have
special properties and that may put restrictions on how system software
must configure remapping structures that govern such devices in a platform
where remapping hardware is enabled.

Updated DRHD definition - field 'reserved' is replaced with 'Size'.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3978

Signed-off-by: Robert Kowalewski <robert.kowalewski@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Jenny Huang <jenny.huang@intel.com>
Cc: Sheng Wei <w.sheng@intel.com>
Reviewed-by: Sheng Wei <w.sheng@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>