Removed ability from boot up (see ez80cpudrv.adm) to allow for setting of
external memory and io timing using eZ80's W/S config. All timings
must now be specified in terms of eZ80's Bus Cycle setting.
This is to increase compatibility with various external RCBus/RC2014
modules.
Due to eZ80 firmware changes, the configuration was always setting
the I/O Bus Cycle to the maximum setting of 7 - typically most system
will work fine at a setting of 4 B/C
current ez80 firmware version: 0.5.0.234 2025-06-21
