Add copy_coherency test

Test cache managemenent and synchronization between kernel and copy commands
in separate queues.

hipamd/tests/src/runtimeApi/synchronization/memcpyInt.device.cpp

@@ -0,0 +1,13 @@
+#include <hip/hip_runtime.h>
+
+
+    
+extern "C" __global__ void
+memcpyIntKernel(hipLaunchParm lp, int *dst, const int * src, size_t numElements)
+{
+    int gid = (hipBlockIdx_x * hipBlockDim_x + hipThreadIdx_x);
+    int stride = hipBlockDim_x * hipGridDim_x ;
+    for (size_t i= gid; i< numElements; i+=stride){
+       dst[i] = src[i];
+    }
+};