amdsmi_cli: Fix issues in cpu API "cpu_lclk_dpm_level"

- Fix issues in cpu API "cpu_lclk_dpm_level"
  - Fix issue for invalid core id
  - Update the error message for invalid devices

Change-Id: I71216ff72f89cfe0c86928ae3dce1f88eae91665


[ROCm/amdsmi commit: 256907989b]

projects/amdsmi/amdsmi_cli/amdsmi_cli_exceptions.py

@@ -119,7 +119,7 @@ class AmdSmiDeviceNotFoundException(AmdSmiException):
         self.command = command
         self.output_format = outputformat
 
-        common_message = f"Can not find a GPU with the corresponding identifier: '{self.command}'"
+        common_message = f"Can not find a device with the corresponding identifier: '{self.command}'"
 
         self.json_message["error"] = common_message
         self.json_message["code"] = self.value