Adding Samsung Exynos i S111 target code. Adding a new target of HW development kit using [Samsung Exynos i S111](https://www.samsung.com/semiconductor/minisite/exynos/products/iot/exynos-i-s111/) module to Mbed-OS. This will widen the HW choices of Mbed-OS enabled NB-IoT, GNSS and Security (eFuse, AES, SHA-2, PKA, Secure Storage, Security Sub-System, [PUF](https://en.wikipedia.org/wiki/Physical_unclonable_function)) modules. Target Name: S5JS100

Co-authored-by: Ivan Galkin <[email protected]>
Co-authored-by: Seokwon Lee <[email protected]>
Co-authored-by: Zhizhe Zhu <[email protected]>
Co-authored-by: Xinyi Zhao <[email protected]>

Author: 5 people

features/mbedtls/targets/TARGET_Samsung/mbedtls_device.h

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+/* mbed Microcontroller Library
+ * Copyright (c) 2015-2016 Nuvoton
+ *
+ * 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 MBEDTLS_DEVICE_H
+#define MBEDTLS_DEVICE_H
+
+//#define MBEDTLS_DES_ALT
+
+//#define MBEDTLS_SHA1_ALT
+#define MBEDTLS_SHA256_ALT
+#define MBEDTLS_SHA512_ALT
+
+//#define MBEDTLS_AES_ALT
+
+//#define MBEDTLS_ECP_INTERNAL_ALT
+/* Support for Weierstrass curves with Jacobi representation */
+//#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT
+//#define MBEDTLS_ECP_ADD_MIXED_ALT
+//#define MBEDTLS_ECP_DOUBLE_JAC_ALT
+//#define MBEDTLS_ECP_NORMALIZE_JAC_ALT
+//#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT
+/* Support for curves with Montgomery arithmetic */
+//#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT
+//#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT
+//#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT
+
+#endif /* MBEDTLS_DEVICE_H */