drm/tegra: Use correct relocation target offsets

When copying a relocation from userspace, copy the correct target
offset.
Signed-off-by: David Ung <davidu@nvidia.com>
Fixes: 961e3bea ("drm/tegra: Make job submission 64-bit safe")
Cc: stable@vger.kernel.org
[treding@nvidia.com: provide a better commit message]
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/drm/tegra/drm.c

@@ -293,7 +293,7 @@ static int host1x_reloc_copy_from_user(struct host1x_reloc *dest,
 	if (err < 0)
 		return err;
 
-	err = get_user(dest->target.offset, &src->cmdbuf.offset);
+	err = get_user(dest->target.offset, &src->target.offset);
 	if (err < 0)
 		return err;