https://bugzilla.tianocore.org/show_bug.cgi?id=2522
VariablePolicy is an updated interface to
replace VarLock and VarCheckProtocol.
Add the VariablePolicy protocol interface
header and add to the MdeModulePkg.dec file.
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Bret Barkelew <brbarkel@microsoft.com>
Signed-off-by: Bret Barkelew <brbarkel@microsoft.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Acked-by: Jian J Wang <jian.j.wang@intel.com>
