Replace corrections property with module attr

Author: jenshnielsen

src/qcodes/instrument_drivers/Keysight/keysight_e4980a.py

@@ -371,17 +371,14 @@ def __init__(
         )
         """This parameter tracks the signal mode which is being set."""
 
-        self._correction: KeysightE4980ACorrection = self.add_submodule(
-            "_correction", KeysightE4980ACorrection(self, "correction")
+        self.correction: KeysightE4980ACorrection = self.add_submodule(
+            "correction", KeysightE4980ACorrection(self, "correction")
         )
+        """Correction submodule"""
+
         self._set_signal_mode_on_driver_initialization()
         self.connect_message()
 
-    @property
-    def correction(self) -> KeysightE4980ACorrection:
-        submodule = self._correction
-        return submodule
-
     @property
     def measure_impedance(self) -> KeysightE4980AMeasurementPair:
         return self._get_complex_impedance()