Add verbose logs for rp2040

Author: Maurizio Branca

src/utility/ota/OTA-nano-rp2040.cpp

@@ -119,6 +119,8 @@ int rp2040_connect_onOTARequest(char const * ota_url)
 
   watchdog_reset();
 
+  DEBUG_VERBOSE("%s downloading: %s", __FUNCTION__, ota_url);
+  
   URI url(ota_url);
   Client * client = nullptr;
   int port = 0;
@@ -241,6 +243,9 @@ int rp2040_connect_onOTARequest(char const * ota_url)
      return static_cast<int>(OTAError::RP2040_ErrorUnmount);
   }
 
+  DEBUG_VERBOSE("%s download successful", __FUNCTION__);
+  DEBUG_VERBOSE("%s performing reset to reboot", __FUNCTION__);
+
   /* Perform the reset to reboot to SFU. */
   mbed_watchdog_trigger_reset();
   /* If watchdog is enabled we should not reach this point */