strace: upgrade 6.15 -> 6.16

strace: upgrade 6.15 -> 6.16

Upgrade to the latest upstream release (2025-08-05), which includes:
- Added new -N/--arg-names option to show syscall argument names
- Implemented PTRACE_SET_SYSCALL_INFO ptrace API support from Linux 6.16
- Decoding updates for SO_RCVPRIORITY, SO_PASSRIGHTS, RTA_NH_ID, RTA_FLOWLABEL
- Enhanced statx syscall decoding and numerous new constant/ioctl updates

Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>