Calculate airtime of transmitted and received packets separately (#8205)

src/mesh/SX126xInterface.h

@@ -72,6 +72,8 @@ template <class T> class SX126xInterface : public RadioLibInterface
 
     virtual void setStandby() override;
 
+    uint32_t getPacketTime(uint32_t pl, bool received) override { return computePacketTime(lora, pl, received); }
+
   private:
     /** Some boards require GPIO control of tx vs rx paths */
     void setTransmitEnable(bool txon);