Change BatDsch.CurBatDsch identifier to `battery_power_discharge_to…

…tal`

This matches the pattern used for `BatChrg.CurBatCha` and yields
plausible values with my SBSE4.

However, `BatDsch.CurBatDschArr.1` shares the same identifier now,
not sure if that's a good thing. The same happens for the charging
counterpart as well.

pysma/definitions_ennexos.py

@@ -829,7 +829,7 @@
         Sensor("Bat.Diag.VolMax.1", None, factor=1, unit=None),
         Sensor("BatDsch.BatDschArr.1", None, factor=1, unit=None),
         Sensor("BatDsch.BatDsch", None, factor=1, unit=None),
-        Sensor("BatDsch.CurBatDsch", Identifier.battery_power_discharge_a, factor=1, unit="W"),
+        Sensor("BatDsch.CurBatDsch", Identifier.battery_power_discharge_total, factor=1, unit="W"),
         Sensor("BatDsch.CurBatDschArr.1", Identifier.battery_discharge_total, factor=1, unit="W"),
         Sensor("Bat.OpTms.1", None, factor=1, unit=None),
         Sensor("Bat.Vol.1", Identifier.battery_voltage_a, factor=1, unit="V"),