Merge pull request #7828 from davidhorstmann-arm/2.28-reword-net-free…

…-description-2544

[Backport 2.28] Reword the description of `mbedtls_net_free()`

include/mbedtls/net_sockets.h

@@ -283,13 +283,21 @@ int mbedtls_net_recv_timeout(void *ctx, unsigned char *buf, size_t len,
  * \brief          Closes down the connection and free associated data
  *
  * \param ctx      The context to close
+ *
+ * \note           This function frees and clears data associated with the
+ *                 context but does not free the memory pointed to by \p ctx.
+ *                 This memory is the responsibility of the caller.
  */
 void mbedtls_net_close(mbedtls_net_context *ctx);
 
 /**
  * \brief          Gracefully shutdown the connection and free associated data
  *
  * \param ctx      The context to free
+ *
+ * \note           This function frees and clears data associated with the
+ *                 context but does not free the memory pointed to by \p ctx.
+ *                 This memory is the responsibility of the caller.
  */
 void mbedtls_net_free(mbedtls_net_context *ctx);