drm/amdgpu/acpi: fix typo in ATCS handling

Path should be NULL when we already have the handle
to the object.
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Tested-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

@@ -557,7 +557,7 @@ static union acpi_object *amdgpu_atcs_call(struct amdgpu_atcs *atcs,
 		atcs_arg_elements[1].integer.value = 0;
 	}
 
-	status = acpi_evaluate_object(atcs->handle, "ATCS", &atcs_arg, &buffer);
+	status = acpi_evaluate_object(atcs->handle, NULL, &atcs_arg, &buffer);
 
 	/* Fail only if calling the method fails and ATIF is supported */
 	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {