s390/pkey: Wipe copies of clear-key structures on failure

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AZL-47403 CVE-2024-42156 affecting package kernel for versions less than 6.6.64.2-9

In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Wipe copies of clear-key structures on failure Wipe all sensitive data from stack for all IOCTLs, which convert a clear-key into a protected- or secure-key...