runstate: Allow to transition from paused to postmigrate

The user may already have paused the VM before starting the
migration process. If s/he does that, then the state will be
'paused' when we finish the migration process. In that case
we want to transition from 'paused' to 'postmigrate' as the
latter is now the real reason why the VM is stopped.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

vl.c

@@ -341,6 +341,7 @@ static const RunStateTransition runstate_transitions_def[] = {
     { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
 
     { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
+    { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
 
     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },