SecurityPkg: Tcg2Smm: Added support for Standalone Mm

SecurityPkg: Tcg2Smm: Added support for Standalone Mm

https://bugzilla.tianocore.org/show_bug.cgi?id=3169

This change added Standalone MM instance of Tcg2. The notify function for
Standalone MM instance is left empty.

A dependency DXE driver with a Depex of gEfiMmCommunication2ProtocolGuid
was created to indicate the readiness of Standalone MM Tcg2 driver.

Lastly, the support of CI build for Tcg2 Standalone MM module is added.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Qi Zhang <qi1.zhang@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Kun Qin <kun.q@outlook.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <MWHPR06MB3102C3F99CBADFCC5F8A821CF3969@MWHPR06MB3102.namprd06.prod.outlook.com>