config: Update example configs to use rotation_distance

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

config/generic-creality-v4.2.7.cfg

@@ -19,7 +19,8 @@
 step_pin: PB9
 dir_pin: PC2
 enable_pin: !PC3
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^PA5
 position_endstop: 0
 position_max: 235
@@ -29,7 +30,8 @@ homing_speed: 50
 step_pin: PB7
 dir_pin: PB8
 enable_pin: !PC3
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^PA6
 position_endstop: 0
 position_max: 235
@@ -39,7 +41,8 @@ homing_speed: 50
 step_pin: PB5
 dir_pin: !PB6
 enable_pin: !PC3
-step_distance: .0025
+microsteps: 16
+rotation_distance: 8
 endstop_pin: ^PA7
 position_endstop: 0.0
 position_max: 250
@@ -49,7 +52,8 @@ max_extrude_only_distance: 100.0
 step_pin: PB3
 dir_pin: PB4
 enable_pin: !PC3
-step_distance: 0.010752
+microsteps: 16
+rotation_distance: 33.500
 nozzle_diameter: 0.400
 filament_diameter: 1.750
 heater_pin: PA1