t/zbd: add test case to check zones in closed condition

t/zbd: add test case to check zones in closed condition

When the zoned block device has max_active_zones limit, the zones in
open or closed condition consume resource on the device. If the number
of zones in open or closed condition gets larger than the
max_active_zones limit, the device reports an error. Until the recent
fix ("zbd: write to closed zones on the devices with max_active_zones
limit"), fio handled only zones in open condition as write target then
fio was not able to avoid the error.

Add a test which confirms that the fix avoids the error by handling
zones in closed condition as write target. This test case requires the
device has max_active_zones limit. Prepare zones in closed condition as
many as the max_active_zones limit. Do random write and check no error.

Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://lore.kernel.org/r/20230719105756.553146-8-shinichiro.kawasaki@wdc.com
Signed-off-by: Vincent Fu <vincent.fu@samsung.com>