Disable failing tests for VDI

The hipExtModuleLaunchKernel and hipModuleLoadDataMultiThreaded tests keeps randomly failing on Jenkins.

Change-Id: I87e5d54fb7429c14ff1dcecb20e03a7816670fae

tests/src/runtimeApi/module/hipModuleLoadDataMultThreaded.cpp

@@ -18,7 +18,7 @@ THE SOFTWARE.
 */
 
 /* HIT_START
- * BUILD: %t %s ../../test_common.cpp NVCC_OPTIONS -std=c++11
+ * BUILD: %t %s ../../test_common.cpp NVCC_OPTIONS -std=c++11 EXCLUDE_HIP_PLATFORM vdi
  * TEST: %t
  * HIT_END
  */