Name unnamed structs and remove duplicated semicolons

lv_porting/lv_port_indev_templ.c

@@ -421,4 +421,8 @@ static bool button_is_pressed(uint8_t id)
     return false;
 }
 
+#else /* Enable this file at the top */
+
+/* This dummy typedef exists purely to silence -Wpedantic. */
+typedef int keep_pedantic_happy;
 #endif