Modify available() function

- Return when DPL packet is to big as DPL functionality takes 2-bytes:
 a: with CRC disabled, packet max size is 125
 b: with CRC enabled, packet max size is 123
- Return if packet too large

src/nrf_to_nrf.cpp

@@ -180,10 +180,15 @@ bool nrf_to_nrf::available(uint8_t* pipe_num)
         uint32_t counter = 0;
         uint8_t tmpIV[CCM_IV_SIZE];
         NRF_RADIO->EVENTS_CRCOK = 0;
-        if (DPL && radioData[0] > ACTUAL_MAX_PAYLOAD_SIZE - 4) {
+        if (DPL && radioData[0] > ACTUAL_MAX_PAYLOAD_SIZE - 4 && NRF_RADIO->CRCCNF != 0) {
+            NRF_RADIO->TASKS_START = 1;
+            return 0;
+        }else
+        if (DPL && radioData[0] > ACTUAL_MAX_PAYLOAD_SIZE - 2 && NRF_RADIO->CRCCNF == 0) {
             NRF_RADIO->TASKS_START = 1;
             return 0;
         }
+
         *pipe_num = (uint8_t)NRF_RADIO->RXMATCH;
         if (!DPL && acksEnabled(*pipe_num) == false) {
 #if defined CCM_ENCRYPTION_ENABLED