Verify that LUKS devices have some encryption key (#1023442)
Verify that LUKS devices have some encryption key (#1023442)

Resolves: rhbz#1023442

This add a check that every non-existant LUKS device has some encryption
key to blivet.Blivet.sanityCheck.

Signed-off-by: mulhern <7b51bcf507bcd7afb72bf8663752c0ddbeb517f6@redhat.com>

jkonecny12/blivet,dwlehman/blivet,rvykydal/blivet,vpodzime/blivet,vojtechtrefny/blivet,AdamWill/blivet,vojtechtrefny/blivet,dwlehman/blivet,AdamWill/blivet,jkonecny12/blivet,rhinstaller/blivet,rvykydal/blivet,vpodzime/blivet,rhinstaller/blivet