v2: use "IP & Netmask" directly instead of defining an additional variable. This patch is to sync the direct route entry setting in both the default and Instance route table {Subnet, Mask, NextHope} ( https://bugzilla.tianocore.org/show_bug.cgi?id=1143). Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>