[SSSD] [sssd PR#698][opened] Add support for EC keys

[sumit-bose]

   URL: https://github.com/SSSD/sssd/pull/698
Author: sumit-bose
 Title: #698: Add support for EC keys
Action: opened

PR body:
"""
This patch set adds support for elliptic curve (EC) keys to p11_child and the
ssh key extraction code.

Related to https://pagure.io/SSSD/sssd/issue/3887
"""

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/698/head:pr698
git checkout pr698