Reflects change in esp_bt_gap_set_scan_mode in esp-idf

[pvint]

In espressif/esp-idf@5beb280 the function esp_bt_gap_set_scan_mode() was changed to split the parameter into two parameters (one for CONNECTABLE and one for DISCOVERABLE), resulting in the following error when compiling within esp-idf:

/home/pvint/Electronics/Starfish-idf/components/arduino/libraries/BluetoothSerial/src/BluetoothSerial.cpp: In function 'void esp_spp_cb(esp_spp_cb_event_t, esp_spp_cb_param_t*)':
/home/pvint/Electronics/Starfish-idf/components/arduino/libraries/BluetoothSerial/src/BluetoothSerial.cpp:161:34: error: 'ESP_BT_SCAN_MODE_CONNECTABLE' was not declared in this scope
         esp_bt_gap_set_scan_mode(ESP_BT_SCAN_MODE_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
                                  ^

This PR addresses this change for BluetoothSerial.cpp

[me-no-dev]

thanks will merge this when I update IDF in a couple of days :)

[justintconroy]

Still waiting...?

[CLAassistant]

All committers have signed the CLA.

[pvint]

2.5 years later and this is still an issue with a clean install. I'll try to update the PR soon, but it will likely be weeks at a minimum.