block: force select mq-deadline for zoned block devices

In most use cases of zoned block devices (aka SMR disks), the
mq-deadline scheduler is mandatory as it implements sequential write
command processing guarantees with zone write locking. So make sure that
this scheduler is always enabled if CONFIG_BLK_DEV_ZONED is selected.

Tested-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/Kconfig

@@ -73,6 +73,7 @@ config BLK_DEV_INTEGRITY
 
 config BLK_DEV_ZONED
 	bool "Zoned block device support"
+	select MQ_IOSCHED_DEADLINE
 	---help---
 	Block layer zoned block device support. This option enables
 	support for ZAC/ZBC host-managed and host-aware zoned block devices.