Merge pull request #38712 from orozery/librbd-encryption-api

librbd: encryption API

Reviewed-by: Jason Dillaman <dillaman@redhat.com>

diff --cc src/librbd/CMakeLists.txt
Simple merge

diff --cc src/test/librbd/CMakeLists.txt
Simple merge

diff --cc src/test/librbd/test_librbd.cc
Simple merge