esp_rom: Add initial ESP32-C3 support

From internal commit 7761d6e8

components/esp_rom/include/esp32c3/rom/aes.h

@@ -0,0 +1,58 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// 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 _ROM_AES_H_
+#define _ROM_AES_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define AES_BLOCK_SIZE 16
+
+enum AES_TYPE {
+    AES_ENC,
+    AES_DEC,
+};
+
+enum AES_BITS {
+    AES128,
+    AES192,
+    AES256
+};
+
+void ets_aes_enable(void);
+
+void ets_aes_disable(void);
+
+void ets_aes_set_endian(bool key_word_swap, bool key_byte_swap,
+                        bool in_word_swap, bool in_byte_swap,
+                        bool out_word_swap, bool out_byte_swap);
+
+int ets_aes_setkey(enum AES_TYPE type, const void *key, enum AES_BITS bits);
+
+int ets_aes_setkey_enc(const void *key, enum AES_BITS bits);
+
+int ets_aes_setkey_dec(const void *key, enum AES_BITS bits);
+
+void ets_aes_block(const void *input, void *output);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ROM_AES_H_ */