VMM: return error if memory-only handle alloc fail

Return HSA_STATUS_ERROR_OUT_OF_RESOURCES if thunk call to allocate
memory handle returns NULL.

Change-Id: I6cf74f93f7d606416414ea7c2354db86aeef3137
Signed-off-by: Chris Freehill <cfreehil@amd.com>

runtime/hsa-runtime/core/runtime/amd_memory_region.cpp

@@ -245,9 +245,9 @@ hsa_status_t MemoryRegion::AllocateImpl(size_t& size, AllocateFlags alloc_flags,
     *address = AllocateKfdMemory(kmt_alloc_flags, node_id, size);
   }
 
-  if (kmt_alloc_flags.ui32.NoAddress) return HSA_STATUS_SUCCESS;
-
   if (*address != nullptr) {
+    if (kmt_alloc_flags.ui32.NoAddress) return HSA_STATUS_SUCCESS;
+
     // Commit the memory.
     // For system memory, on non-restricted allocation, map it to all GPUs. On
     // restricted allocation, only CPU is allowed to access by default, so