CVE-2025-38556 HID: core: Harden s32ton() against conversion to 0 bits

In the Linux kernel, the following vulnerability has been resolved: HID: core: Harden s32ton against conversion to 0 bits Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity to a 0-bit quantity. Ideally this should...