MemoryStream end with override

Author: pschatzmann

src/AudioConfig.h

@@ -328,6 +328,6 @@ typedef uint32_t eps32_i2s_sample_rate_type;
 #define FLUSH_OVERRIDE override
 #endif
 
-#ifndef OVERRIDE
+#ifndef FLUSH_OVERRIDE
 #define FLUSH_OVERRIDE 
 #endif

src/AudioTools/AudioStreams.h

@@ -196,7 +196,7 @@ class MemoryStream : public AudioStream {
 
   virtual void flush() override {}
 
-  virtual void end() {
+  virtual void end() override {
     read_pos = 0;
   }