Add openbsd/netbsd x86_64 systems to list using 16 for size of cextended type

git-svn-id: trunk@20749 -

compiler/symdef.pas

@@ -2059,6 +2059,7 @@ implementation
            sc80real:
              if target_info.system in [system_i386_darwin,system_i386_iphonesim,system_x86_64_darwin,
                   system_x86_64_linux,system_x86_64_freebsd,
+                  system_x86_64_openbsd,system_x86_64_netbsd,
                   system_x86_64_solaris,system_x86_64_embedded] then
                savesize:=16
              else