Added Power Saving for NRF52 companions

examples/companion_radio/main.cpp

@@ -248,13 +248,19 @@ void loop() {
 #endif
   rtc_clock.tick();
 
+  if (!the_mesh.hasPendingWork()) {
+#if defined(NRF52_PLATFORM)
+    board.sleep(0); // nrf ignores seconds param, sleeps whenever possible
+#endif
+  }
+
 #if defined(ESP32) && defined(WIFI_SSID)
   // Safely attempt to reconnect every 10 seconds if flagged
   if (wifi_needs_reconnect && (millis() - last_wifi_reconnect_attempt > 10000)) {
-      WIFI_DEBUG_PRINTLN("Attempting manual WiFi reconnect...");
-      WiFi.disconnect();
-      WiFi.reconnect();
-      last_wifi_reconnect_attempt = millis();
+    WIFI_DEBUG_PRINTLN("Attempting manual WiFi reconnect...");
+    WiFi.disconnect();
+    WiFi.reconnect();
+    last_wifi_reconnect_attempt = millis();
   }
 #endif
 }