job: Move BlockJobCreateFlags to Job

This renames the BlockJobCreateFlags constants, moves a few JOB_INTERNAL
checks to job_create() and the auto_{finalize,dismiss} fields from
BlockJob to Job.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>

include/block/blockjob_int.h

@@ -106,8 +106,7 @@ struct BlockJobDriver {
  * @bs: The block
  * @perm, @shared_perm: Permissions to request for @bs
  * @speed: The maximum speed, in bytes per second, or 0 for unlimited.
- * @flags: Creation flags for the Block Job.
- *         See @BlockJobCreateFlags
+ * @flags: Creation flags for the Block Job. See @JobCreateFlags.
  * @cb: Completion function for the job.
  * @opaque: Opaque pointer value passed to @cb.
  * @errp: Error object.