uname: pass the load average bits down
syscall_name: Fix wrong entries

Ones found while building the Z88DK test C lib
syscall: 32bytes per dirent needed
syscall-z88dk: initial fix ups

It now looks plausible but isn't yet tested
Merge Will's fixes
Merge branch 'master' of https://github.com/EtchedPixels/FUZIX
Oops: revert Will's bits I didn't mean to merge