QError: new class for device encrypted errors

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/qerror.c b/qerror.c
index eb4ce33..d90529c 100644
--- a/qerror.c
+++ b/qerror.c
@@ -45,6 +45,10 @@
         .desc        = "The command %(name) has not been found",
     },
     {
+        .error_fmt = QERR_DEVICE_ENCRYPTED,
+        .desc      = "The %(device) is encrypted",
+    },
+    {
         .error_fmt = QERR_DEVICE_NOT_FOUND,
         .desc      = "The %(device) device has not been found",
     },