Linux 6.4 syscall changes

Syscall changes in Linux 6.4 compared with 6.3: 2 added, 0 removed.

Added in Linux 6.4

SYSCALLDESCRIPTIONARCHITECTURES AND NUMBERS
memfd_secret create an anonymous RAM-based file to access secret memory regions s390x 447
riscv_hwprobe - riscv64 258

Same data from the API: https://api.syscall.sh/v2/diff/6.3/6.4