NetworkPkg: Update Ipsecconfig Application to print the keys of SAD in concise way.

If the SAD is set manually, print its keys in Ascci string format.
If the SAD is created by IKE, print its keys in Hex format. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11226 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed