CVE-2022-50761 x86/xen: Fix memory leak in xen_init_lock_cpu()

In the Linux kernel, the following vulnerability has been resolved: x86/xen: Fix memory leak in xeninitlockcpu In xeninitlockcpu, the @name has allocated new string by kasprintf, if bindipitoirqhandler fails, it should be freed, otherwise may lead to a memory leak issue, fix it...