Merge pull request #3218 from fkallay1/fix/lr2021-set-tx-power-rx-stall

Fix LR2021 occasionally stopping reception after a TX power change

src/helpers/radiolib/RadioLibWrappers.cpp

@@ -48,6 +48,9 @@ uint32_t RadioLibWrapper::getRngSeed() {
 }
 
 void RadioLibWrapper::setTxPower(int8_t dbm) {
+#if defined(USE_LR2021)
+  idle();
+#endif
   _radio->setOutputPower(dbm);
 }
 
@@ -254,4 +257,4 @@ PacketMillis RadioLibWrapper::calcMaxPacketMillis(uint8_t sf, float bw, uint8_t
   if (cr >= 5 && cr < 8) { payload_us = (payload_us * 8) / cr; }
 
   return PacketMillis {(preamble_us + 999) / 1000, (payload_us + 999) / 1000};
-}
+}