Apply S3TC Android/iOS fix to GLES3

(cherry picked from commit 4abe07c81162b0f2b5b8bce548bc7a023f73dc89)

drivers/gles3/rasterizer_storage_gles3.cpp

@@ -8062,6 +8062,12 @@ void RasterizerStorageGLES3::initialize() {
 	config.framebuffer_float_supported = config.extensions.has("GL_EXT_color_buffer_float");
 	config.framebuffer_half_float_supported = config.extensions.has("GL_EXT_color_buffer_half_float") || config.framebuffer_float_supported;
 
+	// If the desktop build is using S3TC, and you export / run from the IDE for android, if the device supports
+	// S3TC it will crash trying to load these textures, as they are not exported in the APK. This is a simple way
+	// to prevent Android devices trying to load S3TC, by faking lack of hardware support.
+#if defined(ANDROID_ENABLED) || defined(IPHONE_ENABLED)
+	config.s3tc_supported = false;
+#endif
 #endif
 
 	// not yet detected on GLES3 (is this mandated?)