Bring this file up to reality (as far as I know .. these are only
the devices I once owned or contemplated purchasing .. )

(1) The ncr controller supports 53C810/815/825/860/875.

(2) Descrpitions of fxp0 and vx0 were missing.

(3) The ed driver supports SMC 8216 (`Elite Ultra') too.

(4) Add pseudo-device ccd.