Add 100 msecond delay in tft_task_handler when deviceScreen is null (#6695)

* Add 100 msecond delay in tft_task_handler when deviceScreen is null, to fix 100% usage bug

* move portduino tft task creation into tftSetup

* remove superfluous check

* update platform-native commit

---------

Co-authored-by: mverch67 <manuel.verch@gmx.de>

arch/portduino/portduino.ini

@@ -2,7 +2,7 @@
 [portduino_base]
 platform =
   # renovate: datasource=git-refs depName=platform-native packageName=https://github.com/meshtastic/platform-native gitBranch=develop
-  https://github.com/meshtastic/platform-native/archive/e19f77e034590669feaaf26214667b76d0821d06.zip
+  https://github.com/meshtastic/platform-native/archive/622341c6de8a239704318b10c3dbb00c21a3eab3.zip
 framework = arduino
 
 build_src_filter = 

src/graphics/tftSetup.cpp

@@ -11,6 +11,7 @@
 
 #ifdef ARCH_PORTDUINO
 #include "PortduinoGlue.h"
+#include <thread>
 #endif
 
 DeviceScreen *deviceScreen = nullptr;
@@ -26,14 +27,12 @@ CallbackObserver<DeviceScreen, esp_sleep_wakeup_cause_t> endSleepObserver =
 void tft_task_handler(void *param = nullptr)
 {
     while (true) {
-        if (deviceScreen) {
         spiLock->lock();
         deviceScreen->task_handler();
         spiLock->unlock();
         deviceScreen->sleep();
     }
 }
-}
 
 void tftSetup(void)
 {
@@ -116,11 +115,15 @@ void tftSetup(void)
     }
 #endif
 
+    if (deviceScreen) {
 #ifdef ARCH_ESP32
         tftSleepObserver.observe(&notifyLightSleep);
         endSleepObserver.observe(&notifyLightSleepEnd);
         xTaskCreatePinnedToCore(tft_task_handler, "tft", 10240, NULL, 1, NULL, 0);
+#elif defined(ARCH_PORTDUINO)
+        std::thread *tft_task = new std::thread([] { tft_task_handler(); });
 #endif
     }
+}
 
 #endif