Fix internal temperature reading on ESP32 (#1391)

The previous macro used SENS_SAR_MEAS_WAIT2_REG to identify if we have the reading capability was not working, so replacing it by a fresh one NO_INT_TEMP_READING, defined as a negation due to the fact that most of the ESP32 supports internal temperature reading.

platformio.ini

@@ -1512,6 +1512,7 @@ build_flags =
   '-DFASTLED_IND_TYPE=NEOPIXEL'
   '-DFASTLED_IND_NUM_LEDS=1'
   '-DRGB_INDICATORS=true'
+  '-DNO_INT_TEMP_READING=true' ; Internal temperature reading not building on ESP32 C3 or S3
   '-DGateway_Name="OpenMQTTGateway_ESP32_BLE"'
 
 [env:esp32c3-dev-m1-ble]
@@ -1531,6 +1532,7 @@ build_flags =
   '-DFASTLED_IND_TYPE=NEOPIXEL'
   '-DFASTLED_IND_NUM_LEDS=1'
   '-DRGB_INDICATORS=true'
+  '-DNO_INT_TEMP_READING=true' ; Internal temperature reading not building on ESP32 C3 or S3
   '-DGateway_Name="OpenMQTTGateway_ESP32_BLE"'
 
 [env:thingpulse-espgateway]