libnvdimm/labels: Fix divide error in nd_label_data_init()

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DEBIAN-CVE-2025-38072

In the Linux kernel, the following vulnerability has been resolved: libnvdimm/labels: Fix divide error in ndlabeldatainit If a faulty CXL memory device returns a broken zero LSA size in its memory device information Identify Memory Device Opcode 4000h, CXL spec. 3.1, 8.2.9.9.1.1, a divide error...