[2.0.x] Tronxy X3A configurations and thermistor

Fix #11183

See #11097

* Fix G29 (ABL) retry behavior

To allow for the case where a Z endstop (e.g., hall effect) is higher than the probe trigger point, don't check the Z min endstop during probe moves. See #11134

- Allow planner to alter the deceleration phase of the currently executing block.
- Remove BUSY flag, as it is NON ATOMIC to set bits in the Stepper ISR and Planner at the same time.

Co-Authored-By: J.C. Nelson <xc0000005@users.noreply.github.com>

Fixed for cycle used to initialize default values

...and recommended pulse width configuration for A4988

Co-Authored-By: p3p <p3p@p3psoft.co.uk>