SWDEV-481860 - Match malloc/hipMalloc calls with free/hipFree calls in all samples.

Change-Id: Ib44551b3f60cd90fa7158e4ed016ef5549a34ef7

samples/2_Cookbook/14_gpu_arch/gpuarch.cpp

@@ -86,5 +86,9 @@ int main() {
   } else {
     std::cout << "success\n";
   }
+  free(hInput);
+  free(hOutput);
+  checkHipErrors(hipFree(dInput));
+  checkHipErrors(hipFree(dOutput));
   return 0;
 }