fw: drivers: add da1468x bluetooth code

src/bluetooth-fw/da1468x/controller/main/include/aes.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define AES_128_BLOCK_SIZE (16)
+#define AES_128_KEY_SIZE (16)
+
+bool aes_128_encrypt_block(const uint8_t key[AES_128_KEY_SIZE],
+                           const uint8_t plain_text_block[AES_128_BLOCK_SIZE],
+                           uint8_t cipher_text_block_out[AES_128_BLOCK_SIZE]);