9f61265 update to xen-4.17.2 which includes security updates

Authored and Committed by myoung 9 months ago
    update to xen-4.17.2 which includes security updates
    
    x86/AMD: Speculative Return Stack Overflow [XSA-434, CVE-2023-20569]
    x86/Intel: Gather Data Sampling [XSA-435, CVE-2022-40982]
    remove patches now included upstream
    
        
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