Rename utils.h to avoid collision with library. (#2730)

src/platform/esp32/main-esp32.cpp

@@ -9,10 +9,10 @@
 #include "BleOta.h"
 #include "mesh/http/WiFiAPClient.h"
 
+#include "meshUtils.h"
 #include "sleep.h"
 #include "soc/rtc.h"
 #include "target_specific.h"
-#include "utils.h"
 #include <Preferences.h>
 #include <driver/rtc_io.h>
 #include <nvs.h>
@@ -220,4 +220,4 @@ void cpuDeepSleep(uint32_t msecToWake)
 
     esp_sleep_enable_timer_wakeup(msecToWake * 1000ULL); // call expects usecs
     esp_deep_sleep_start();                              // TBD mA sleep current (battery)
-}
+}