IVGCVSW-3400 Add missing virtual destructors

 * Added missing virtual destructors to recently added profiling
   interface classes

Change-Id: Id2c4b3bb22ef233b26723d3e578477c59018fbda
Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>
diff --git a/src/profiling/ISendCounterPacket.hpp b/src/profiling/ISendCounterPacket.hpp
index 7f9e192..5117c5d 100644
--- a/src/profiling/ISendCounterPacket.hpp
+++ b/src/profiling/ISendCounterPacket.hpp
@@ -18,6 +18,8 @@
 public:
     using IndexValuePairsVector = std::vector<std::pair<uint16_t, uint32_t>>;
 
+    virtual ~ISendCounterPacket() {}
+
     /// Create and write a StreamMetaDataPacket in the buffer
     virtual void SendStreamMetaDataPacket() = 0;