esp_avrc_tg_get_rn_evt_cap() function

Get the requested event notification capabilities on local AVRC target. The capability is returned in a bit mask representation in evt_set. This function should be called after esp_avrc_tg_init(). For capability type "ESP_AVRC_RN_CAP_ALLOWED_EVT, the retrieved event set is constant and it covers all of the notification events that can possibly be supported with current implementation. For capability type ESP_AVRC_RN_CAP_SUPPORTED_EVT, the event set covers the notification events selected to be supported under current configuration, The configuration can be changed using esp_avrc_tg_set_rn_evt_cap().