Update ESP32 Example with normal mode

the listen only is a special case, normal mode should be used by default.

Author: designer2k2

examples/EMUcan_ESP32/EMUcan_ESP32.ino

@@ -31,7 +31,7 @@ void setup() {
   Serial.println("------- CAN Read ----------");
 
   // Initialize configuration structures using macro initializers
-  twai_general_config_t g_config = TWAI_GENERAL_CONFIG_DEFAULT((gpio_num_t)TX_PIN, (gpio_num_t)RX_PIN, TWAI_MODE_LISTEN_ONLY);
+  twai_general_config_t g_config = TWAI_GENERAL_CONFIG_DEFAULT((gpio_num_t)TX_PIN, (gpio_num_t)RX_PIN, TWAI_MODE_NORMAL);
   twai_timing_config_t t_config = TWAI_TIMING_CONFIG_500KBITS();  //Look in the api-reference for other speed sets.
   twai_filter_config_t f_config = TWAI_FILTER_CONFIG_ACCEPT_ALL();