crypto: qat - add missing restarting event notification in VFs

VF drivers are notified via PFVF of the VFs being disabled, but
such notification was not propagated within the VF driver.
Dispatch the ADF_EVENT_RESTARTING event by adding a missing call
to adf_dev_restarting_notify().

Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/adf_vf_isr.c

@@ -70,6 +70,7 @@ static void adf_dev_stop_async(struct work_struct *work)
 		container_of(work, struct adf_vf_stop_data, work);
 	struct adf_accel_dev *accel_dev = stop_data->accel_dev;
 
+	adf_dev_restarting_notify(accel_dev);
 	adf_dev_stop(accel_dev);
 	adf_dev_shutdown(accel_dev);