Fix MD5 compilation error

Manual workaround in forked repo
me-no-dev#1085 (comment)

Author: habub

src/WebAuthentication.cpp

@@ -69,11 +69,14 @@ static bool getMD5(uint8_t * data, uint16_t len, char * output){//33 bytes or mo
   if(_buf == NULL)
     return false;
   memset(_buf, 0x00, 16);
-#ifdef ESP32
+#ifdef ESP32		// md5 updated per https://github.com/me-no-dev/ESPAsyncWebServer/issues/1085
   mbedtls_md5_init(&_ctx);
-  mbedtls_md5_starts_ret(&_ctx);
-  mbedtls_md5_update_ret(&_ctx, data, len);
-  mbedtls_md5_finish_ret(&_ctx, _buf);
+  mbedtls_md5_update_ret (&_ctx,data,len);
+  mbedtls_md5_finish_ret(&_ctx,data);
+  mbedtls_internal_md5_process( &_ctx ,data);
+//  mbedtls_md5_starts(&_ctx);
+//  mbedtls_md5_update(&_ctx, data, len);
+//  mbedtls_md5_finish(&_ctx, _buf);
 #else
   MD5Init(&_ctx);
   MD5Update(&_ctx, data, len);