Features
   * Add support to remove decryption operation for cipher type of AES, ARIA
     and CAMELLIA. A new configuration option, MBEDTLS_BLOCK_CIPHER_NO_DECRYPT
     can be used to enable this feature.
     Note that this configuration option is incompatible with MBEDTLS_DES_C,
     MBEDTLS_CIPHER_MODE_CBC, MBEDTLS_CIPHER_MODE_XTS and MBEDTLS_NIST_KW_C.