SWDEV-399104 - Fix hipMemcpy2DAsync_PinnedMemory.tst (#3231)

failure

- As per spec, hipMemset2D is async with respect to host when target memory is device memory
- Hence need to call hipDeviceSynchronize before changing device

Change-Id: I58e6efc9466233d80b8ba2c58c0c691c68827128

tests/src/runtimeApi/memory/hipMemcpy2DAsync.cpp

@@ -174,6 +174,7 @@ bool Memcpy2DAsync::Memcpy2DAsync_PinnedMemory_MultiGPU() {
       HIPCHECK(hipHostMalloc(reinterpret_cast<void**>(&D_h), sizeElements));
       AllocateMemory();
       HIPCHECK(hipMemset2D(A_d, pitch_A, memsetval, NUM_W, NUM_H));
+      HIPCHECK(hipDeviceSynchronize());
       HIPCHECK(hipSetDevice(1));
       hipStream_t p_stream;
       HIPCHECK(hipStreamCreate(&p_stream));