libdmabufheap: Android.bp: Allow libdmabufheap to be double-loadable am: 30b801d190 am: f0e50d8ab1

Original change: https://android-review.googlesource.com/c/platform/system/memory/libdmabufheap/+/1426186

Change-Id: I6f8188e1a1556c5e583315396a108c8ea90cc1f2
tree: b836131aa302e09a8a8fe129ec9da15dd21a9419
  1. include/
  2. tests/
  3. Android.bp
  4. BufferAllocator.cpp
  5. BufferAllocatorWrapper.cpp