MdePkg: Add missing GUID variables in BlockIoCrypto.h

Declares some extern EFI_GUID variables which correspond to
guid macros in BlockIoCrypto.h for C code use.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17378 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed