To move Dpc.h from MdeModulePkg to NetworkPkg,
we need to introduce the Guid of protocol first.
https://bugzilla.tianocore.org/show_bug.cgi?id=1949
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>