accel/amdxdna: Fix dma_fence leak when job is canceled

Currently, dma_fence_put(job->fence) is called in job notification
callback. However, if a job is canceled, the notification callback is never
invoked, leading to a memory leak. Move dma_fence_put(job->fence)
to the job cleanup function to ensure the fence is always released.

Fixes: aac243092b70 ("accel/amdxdna: Add command execution")
Reviewed-by: Mario Limonciello (AMD) <[e-mail]>
Signed-off-by: Lizhi Hou <[e-mail]>
Link: https://patch.msgid.link/[e-mail]

drivers/accel/amdxdna/aie2_ctx.c

···
 
 	up(&job->hwctx->priv->job_sem);
 	job->job_done = true;
-	dma_fence_put(fence);
 	mmput_async(job->mm);
 	aie2_job_put(job);
 }

drivers/accel/amdxdna/amdxdna_ctx.c

···
 	trace_amdxdna_debug_point(job->hwctx->name, job->seq, "job release");
 	amdxdna_arg_bos_put(job);
 	amdxdna_gem_put_obj(job->cmd_bo);
+	dma_fence_put(job->fence);
 }
 
 int amdxdna_cmd_submit(struct amdxdna_client *client,