FEAT-56803 - Fix ocltst slow issues

Fix very slow issues of two ocltst test cases.

Cherry pick
 https://gerrit-git.amd.com/c/compute/ec/clr/+/1009383

Change-Id: I0228c5e87cdec366993fd4afb1c25e7f8161c2c5


[ROCm/clr commit: 4ec274c7d4]

projects/clr/opencl/tests/ocltst/module/runtime/OCLRTQueue.cpp

@@ -30,8 +30,12 @@
 static const size_t Iterations = 0x100;
 static const size_t IterationDivider = 2;
 static const size_t MaxBuffers = IterationDivider;
-static const size_t BufSize = 0x800000;
 
+#if EMU_ENV
+static const size_t BufSize = 0x800;
+#else
+static const size_t BufSize = 0x800000;
+#endif
 const static char* strKernel =
     "__kernel void factorial(__global uint* out)                        \n"
     "{                                                                  \n"