Move NvmExpressHci.h definitions to a public industry standard header in MdePkg. The NvmExpressHci.h contains definitions based on the NVMe v1.1 specification. These definitions should be in a public header so that clients of the NVMe passthru protocol can use them to execute NVMe commands. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Darbin Reyes <darbin.emm.reyes@hpe.com> Reviewed-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@hpe.com> Reviewed-by: Feng Tian <feng.tian@intel.com>