Merge "Adding make files with the new read-only product property ro.product.first_api_level for Android L, L MR1 and M."
am: d5b8a2a5c0

* commit 'd5b8a2a5c0f197bfe8dd1e74c087f8ab014395d9':
  Adding make files with the new read-only product property ro.product.first_api_level for Android L, L MR1 and M.

Change-Id: I61314c9a7d2485d7996e33757bf355e50c769ff5