Update esp32-owb component to resolve owb_verify_rom blocking when no devices are connected.

components/esp32-owb

@@ -1 +1 @@
-Subproject commit de012fd1deeb9aff194bc8e32e1dee725258c022
+Subproject commit af25dd31dbb1e80364b99fad29815badfab0ceda

main/app_main.c

@@ -45,6 +45,7 @@ void app_main()
 
     // To debug OWB, use 'make menuconfig' to set default Log level to DEBUG, then uncomment:
     //esp_log_level_set("owb", ESP_LOG_DEBUG);
+    //esp_log_level_set("ds18b20", ESP_LOG_DEBUG);
 
     // Stable readings require a brief period before communication
     vTaskDelay(2000.0 / portTICK_PERIOD_MS);
@@ -191,6 +192,10 @@ void app_main()
             vTaskDelayUntil(&last_wake_time, SAMPLE_PERIOD / portTICK_PERIOD_MS);
         }
     }
+    else
+    {
+        printf("\nNo DS18B20 devices detected!\n");
+    }
 
     // clean up dynamically allocated data
     for (int i = 0; i < num_devices; ++i)