tmc: Beautify initialization code

Purely esthetic. Make all tmc driver init code similar to one another. The various fields were grouped based on the register which they affect or the function they perform.

Signed-off-by: Alex Voinea <voinea.dragos.alexandru@gmail.com>

klippy/extras/tmc5160.py

@@ -328,8 +328,8 @@ class TMC5160:
         # Setup basic register values
         tmc.TMCWaveTableHelper(config, self.mcu_tmc)
         tmc.TMCStealthchopHelper(config, self.mcu_tmc, TMC_FREQUENCY)
-        #   CHOPCONF
         set_config_field = self.fields.set_config_field
+        #   CHOPCONF
         set_config_field(config, "toff", 3)
         set_config_field(config, "hstrt", 5)
         set_config_field(config, "hend", 2)