This patch adds the HPET Event Timer Block ID definition that can be
found in the IA-PC HPET Specification, section 3.2.4.
V2:
- Do not change the copyright date as requested.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
