Fix coolstep_min_speed / sensorless homing

Fix #8890

Marlin/src/feature/tmc_util.cpp

 #if ENABLED(SENSORLESS_HOMING)
 
   void tmc_sensorless_homing(TMC2130Stepper &st, const bool enable/*=true*/) {
+    st.coolstep_min_speed(enable ? 1024UL * 1024UL - 1UL : 0);
     #if ENABLED(STEALTHCHOP)
-      st.coolstep_min_speed(enable ? 1024UL * 1024UL - 1UL : 0);
       st.stealthChop(!enable);
     #endif
     st.diag1_stall(enable ? 1 : 0);

Marlin/src/module/stepper_indirection.cpp

       #if ENABLED(HYBRID_THRESHOLD)
         st.stealth_max_speed(12650000UL*microsteps/(256*thrs*spmm));
       #endif
-    #elif ENABLED(SENSORLESS_HOMING)
-      st.coolstep_min_speed(1024UL * 1024UL - 1UL);
     #endif
     st.GSTAT(); // Clear GSTAT
   }