Update FreeBSD (f)stat tests for FreeBSD 13.1

Update FreeBSD (f)stat tests for FreeBSD 13.1

Somewhat annoyingly, libc is using tail call optimization
which alters our callstacks.

FreeBSD 13 and earlier had something like

{compatibility API check}
  1372e0:       48 8d 95 08 fe ff ff    lea    -0x1f8(%rbp),%rdx
  1372e7:       bf 8d 01 00 00          mov    $0x18d,%edi
  1372ec:       44 89 f6                mov    %r14d,%esi
  1372ef:       31 c0                   xor    %eax,%eax
  1372f1:       e8 8a c5 09 00          call   1d3880 <syscall@plt>

{compatibility API check}
  1342b9:       3d 9f 4f 12 00          cmp    $0x124f9f,%eax
  1342be:       7c 25                   jl     1342e5 <_fstatfs+0x55>
  1342c0:       49 8b 07                mov    (%r15),%rax
  1342c3:       48 3b 45 e0             cmp    -0x20(%rbp),%rax
  1342c7:       0f 85 51 01 00 00       jne    13441e <_fstatfs+0x18e>

{compatibility not needed}
  1342cd:       44 89 f7                mov    %r14d,%edi
  1342d0:       48 89 de                mov    %rbx,%rsi
  1342d3:       48 81 c4 e8 01 00 00    add    $0x1e8,%rsp
  1342da:       5b                      pop    %rbx
  1342db:       41 5e                   pop    %r14
  1342dd:       41 5f                   pop    %r15
  1342df:       5d                      pop    %rbp

{tail call optimization}

  1342e0:       e9 bb a0 09 00          jmp    1ce3a0 <__sys_fstatfs@plt>

{compatibility API call}

So I've updated the expecteds and added a filter for 13.0 and older.