Stabilize onReceive(...) callback handling

By using SPI.usingInterrupt(…) and SPI.notUsingInterrupt(…)

Author: sandeepmistry

src/LoRa.cpp

@@ -283,9 +283,13 @@ void LoRaClass::onReceive(void(*callback)(int))
 
     writeRegister(REG_DIO_MAPPING_1, 0x00);
 
+    SPI.usingInterrupt(digitalPinToInterrupt(_dio0));
     attachInterrupt(digitalPinToInterrupt(_dio0), LoRaClass::onDio0Rise, RISING);
   } else {
     detachInterrupt(digitalPinToInterrupt(_dio0));
+#ifdef SPI_HAS_NOTUSINGINTERRUPT
+    SPI.notUsingInterrupt(digitalPinToInterrupt(_dio0));
+#endif
   }
 }