Fix BoxNMS GPU workspace size (#17190)
Fix BoxNMS GPU workspace size (#17190)

* Fix BoxNMS GPU workspace size

Signed-off-by: Serge Panev <7d7b527264efe081319120662722568cfdee2b9d@nvidia.com>

* Fix workspace.scores type

Signed-off-by: Serge Panev <7d7b527264efe081319120662722568cfdee2b9d@nvidia.com>

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