One local driver can be assigned to multiple driver ids.
When releasing the driver id, check if the reference count
of a local driver is one before actually releasing the local driver.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46520Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>