hipStreamWaitEvent update.

Add passed to hipStreamWaitEvent test.
Fix pointerAttrib test to work with new and old HCC versions.
Minor code touchup.

Change-Id: I139ba6ce9f6bf2b4bee89aebdec5981b4346ffc0


[ROCm/hip commit: 0923c2d261]

projects/hip/src/hip_memory.cpp

@@ -148,6 +148,8 @@ hipError_t hipMalloc(void** ptr, size_t sizeBytes)
         hip_status = hipErrorMemoryAllocation;
     }
 
+    //printf ("  hipMalloc allocated %p\n", *ptr);
+
     return ihipLogStatus(hip_status);
 }