bugfix persist uptime after deep sleep

src/cyclic.cpp

@@ -134,8 +134,6 @@ void doHousekeeping() {
 
 } // doHousekeeping()
 
-uint64_t uptime() { return (RTC_millis + millis()); }
-
 uint32_t getFreeRAM() {
 #ifndef BOARD_HAS_PSRAM
   return ESP.getFreeHeap();

src/reset.cpp

@@ -183,11 +183,13 @@ void enter_deepsleep(const uint64_t wakeup_sec = 60,
 
   // time stamp sleep start time and save system monotonic time. Deep sleep.
   gettimeofday(&RTC_sleep_start_time, NULL);
-  RTC_millis = millis();
+  RTC_millis += millis();
   ESP_LOGI(TAG, "Going to sleep, good bye.");
   esp_deep_sleep_start();
 
 Error:
   ESP_LOGE(TAG, "Can't go to sleep. Resetting.");
   do_reset(true);
-}
+}
+
+uint64_t uptime() { return (RTC_millis + millis()); }