MdePkg: Add header files for DNS/HTTP/IP4Config2.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: jiaxinwu <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17567 6f19259b-4bc3-4df7-8a09-765794883524
5 files changed