Fix TMC220x short circuit (#20731)

Marlin/src/feature/tmc_util.cpp

@@ -147,7 +147,7 @@
 
     static TMC_driver_data get_driver_data(TMC2208Stepper &st) {
       constexpr uint8_t OTPW_bp = 0, OT_bp = 1;
-      constexpr uint8_t S2G_bm = 0b11110; // 2..5
+      constexpr uint8_t S2G_bm = 0b111100; // 2..5
       TMC_driver_data data;
       const auto ds = data.drv_status = st.DRV_STATUS();
       data.is_otpw = TEST(ds, OTPW_bp);
@@ -291,7 +291,7 @@
     bool should_step_down = false;
 
     if (need_update_error_counters) {
-      if (data.is_ot /* | data.s2ga | data.s2gb*/) st.error_count++;
+      if (data.is_ot | data.is_s2g) st.error_count++;
       else if (st.error_count > 0) st.error_count--;
 
       #if ENABLED(STOP_ON_ERROR)