change and reset sed password

Signed-off-by: Ben Levi <belevi@nvidia.com>

Author: benle7

sonic_platform_base/chassis_base.py

@@ -799,3 +799,23 @@ def get_bmc(self):
         """
         return self._bmc
 
+    def change_sed_password(self, new_password):
+        """
+        Change the SED (Self-Encrypting Drive) password for the platform.
+
+        Args:
+            new_password (str): The new password to set for the SED
+
+        Returns:
+            bool: True if the password change process completed successfully, False otherwise
+        """
+        raise NotImplementedError
+
+    def reset_sed_password(self):
+        """
+        Reset the SED (Self-Encrypting Drive) password to default for the platform.
+
+        Returns:
+            bool: True if the password reset process completed successfully, False otherwise
+        """
+        raise NotImplementedError

tests/chassis_base_test.py

@@ -25,6 +25,8 @@ def test_chassis_base(self):
                 [chassis.get_dpu_id, [], {"name": "DPU0"}],
                 [chassis.get_dataplane_state, [], {}],
                 [chassis.get_controlplane_state, [], {}],
+                [chassis.change_sed_password, ["new_password"], {}],
+                [chassis.reset_sed_password, [], {}],
             ]
 
         for method in not_implemented_methods: