device_info wait 100ms for host's uart, needed for hil test

Author: hathach

examples/host/device_info/src/main.c

@@ -99,6 +99,7 @@ int main(void) {
 #if CFG_TUSB_OS == OPT_OS_FREERTOS
   init_freertos_task();
 #else
+  board_delay(100); // wait for uart to be ready
   init_tinyusb();
   while (1) {
     tuh_task();     // tinyusb host task
@@ -289,6 +290,7 @@ void app_main(void) {
 
 void usb_host_task(void *param) {
   (void) param;
+  board_delay(100); // wait for uart to be ready
   init_tinyusb();
   while (1) {
     tuh_task();