video_core: Disable async shader loading with strict contexts

src/citra/emu_window/emu_window_sdl2_gl.cpp

@@ -82,6 +82,8 @@ EmuWindow_SDL2_GL::EmuWindow_SDL2_GL(bool fullscreen, bool is_secondary)
         exit(1);
     }
 
+    strict_context_required = std::strcmp(SDL_GetCurrentVideoDriver(), "wayland") == 0;
+
     dummy_window = SDL_CreateWindow(NULL, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0,
                                     SDL_WINDOW_HIDDEN | SDL_WINDOW_OPENGL);