Reduce (<= a b ...) to (and (<= a b) ...) in genio column tracking.

Reduce (<= a b ...) to (and (<= a b) ...) in genio column tracking.

Neither SF nor LIAR currently performs that reduction, so every
character written to a generic I/O port was causing a rest list to be
consed up and control to go through a generic microcode primitive
trampoline to do the reduction at run-time.

Also use FIX:<= rather than <=, since the numbers in question are all
fixnums.