[PHY] Add finishReceive method for cleanup after Rx

src/protocols/PhysicalLayer/PhysicalLayer.cpp

@@ -175,6 +175,10 @@ int16_t PhysicalLayer::finishTransmit() {
   return(RADIOLIB_ERR_UNSUPPORTED);
 }
 
+int16_t PhysicalLayer::finishReceive() {
+  return(RADIOLIB_ERR_UNSUPPORTED);
+}
+
 #if defined(RADIOLIB_BUILD_ARDUINO)
 int16_t PhysicalLayer::readData(String& str, size_t len) {
   int16_t state = RADIOLIB_ERR_NONE;

src/protocols/PhysicalLayer/PhysicalLayer.h

@@ -364,6 +364,12 @@ class PhysicalLayer {
     */
     virtual int16_t finishTransmit();
 
+    /*!
+      \brief Clean up after reception is done.
+      \returns \ref status_codes
+    */
+    virtual int16_t finishReceive();
+
     #if defined(RADIOLIB_BUILD_ARDUINO)
     /*!
       \brief Reads data that was received after calling startReceive method.