MdeModulePkg/Ip4Dxe: Add Ip/Netmask pair check for Ip4Config2

MdeModulePkg/Ip4Dxe: Add Ip/Netmask pair check for Ip4Config2

v2:
* Add the check in Ip4Config2SetDefaultIf to avoid the DHCP configuration
case.

Ip4config2 doesn't check the validity of Ip/Netmask pair, which
leads to the invalid combination of Ip and Netmask setting.
This patch is to resolve the issue.

Cc: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>
Cc: Subramanian Sriram <sriram-s@hpe.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Sriram Subramanian <sriram-s@hpe.com>
Reviewed-by: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>