hw/nvram/xlnx-efuse: Do not expose as user-creatable

This device is part of SoC components thus can not
be created manually.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20250325224310.8785-10-philmd@linaro.org>
1 file changed