SWDEV-374401 - Surface the ammount of used constant memory by kernel

Change-Id: I6de0e46482f27b9068582fdaee0e562f9f71f9f0

rocclr/device/devkernel.cpp

@@ -609,6 +609,7 @@ Kernel::Kernel(const amd::Device& dev, const std::string& name, const Program& p
   workGroupInfo_.compileVecTypeHint_ = "";
   workGroupInfo_.uniformWorkGroupSize_ = false;
   workGroupInfo_.wavesPerSimdHint_ = 0;
+  workGroupInfo_.constMemSize_ = 0;
 }
 
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