Fix failing build when DRM is disabled

CHANGELOG.md

@@ -17,6 +17,7 @@ If a change only affects particular applications, they are listed in parentheses
 - feat(buffyboard): Add CLI flags for overriding geometry & DPI
 - fix(unl0kr): Shutdown message box doesn't close on decline
 - fix(unl0kr): Shutdown message box buttons are unstyled
+- fix(unl0kr): Build fails when DRM is disabled
 - misc: Update lvgl to git master (2023-03-30)
 
 ## 3.0.0 (2024-03-22)

unl0kr/lv_conf.h

@@ -515,7 +515,9 @@ e.g. "stm32f769xx.h" or "stm32f429xx.h"*/
 #endif
 
 /*Driver for /dev/dri/card*/
-#define LV_USE_LINUX_DRM        1
+#ifndef LV_USE_LINUX_DRM
+    #define LV_USE_LINUX_DRM        0
+#endif
 
 /*Interface for TFT_eSPI*/
 #define LV_USE_TFT_ESPI         0