UBUNTU: SAUCE: drm/amdgpu/cz: enable/disable vce dpm even if vce pg is disabled

BugLink: http://bugs.launchpad.net/bugs/1546572

I missed this when cleaning up the vce pg handling.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alberto Milone <alberto.milone@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

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

@@ -2226,10 +2226,8 @@ static void cz_dpm_powergate_vce(struct amdgpu_device *adev, bool gate)
 		}
 	} else { /*pi->caps_vce_pg*/
 		cz_update_vce_dpm(adev);
-		cz_enable_vce_dpm(adev, true);
+		cz_enable_vce_dpm(adev, !gate);
 	}
-
-	return;
 }
 
 const struct amd_ip_funcs cz_dpm_ip_funcs = {