libdmabufheap: test: Don't create mapping if heap is supported neither in DMA-BUF heaps nor ION am: 72bc22888a am: 92c2a47703

Original change: https://android-review.googlesource.com/c/platform/system/memory/libdmabufheap/+/1792809

Change-Id: I5909c69624ec7e13d5781ca90c66dc990dea4af1
tree: 0455a865d0ce0d2049cafe7938d2ae9e6893a10b
  1. include/
  2. tests/
  3. Android.bp
  4. BufferAllocator.cpp
  5. BufferAllocatorWrapper.cpp