Import Mbed OS hard-float snapshot

targets/TARGET_Cypress/TARGET_PSOC6/TARGET_CY8CKIT_064S2_4343W/device/COMPONENT_CM4/device_cfg.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2017-2018 Arm Limited
+ * Copyright (c) 2020, Cypress Semiconductor Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ARM_LTD_DEVICE_CFG_H__
+#define __ARM_LTD_DEVICE_CFG_H__
+
+#ifdef TFM_MULTI_CORE_MULTI_CLIENT_CALL
+#define NUM_MAILBOX_QUEUE_SLOT      4
+#endif
+
+#endif  /* __ARM_LTD_DEVICE_CFG_H__ */