Fix llhttp parser issues with closed connections (#3010)

* Do not re-initialise llhttp parser with client connection

* Set parser.data in `BasicHttpHeaders::parse`

Author: mikee47

Sming/Components/Network/src/Network/Http/BasicHttpHeaders.cpp

@@ -42,6 +42,7 @@ HttpError BasicHttpHeaders::parse(char* data, size_t len, http_parser_type type)
 	return HttpError(HTTP_PARSER_ERRNO(&parser));
 #else
 	llhttp_init(&parser, type, &parserSettings);
+	parser.data = this;
 	return HttpError(llhttp_execute(&parser, data, len));
 #endif
 }

Sming/Components/Network/src/Network/Http/HttpClientConnection.h

@@ -86,7 +86,9 @@ class HttpClientConnection : public HttpConnection
 	{
 		if(err == ERR_OK) {
 			state = eHCS_Ready;
+#ifdef USE_LEGACY_HTTP_PARSER
 			init(HTTP_RESPONSE);
+#endif
 		}
 
 		return HttpConnection::onConnected(err);