qmp: Add dirty bitmap status field in query-block

qmp: Add dirty bitmap status field in query-block

Add the "frozen" status booleans, to inform clients
when a bitmap is occupied doing a task.

Signed-off-by: Fam Zheng <[email protected]>
Signed-off-by: John Snow <[email protected]>
Reviewed-by: Max Reitz <[email protected]>
Reviewed-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Eric Blake <[email protected]>
Message-id: 1429314609[email protected]
Signed-off-by: Stefan Hajnoczi <[email protected]>
Signed-off-by: Kevin Wolf <[email protected]>