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 am: e8a6c35785 am: 79b32b3481
am: d0d00b64a2

* commit 'd0d00b64a243a669ba74be88ba27cf7b90f9b5e0':
  Adding make files with the new read-only product property ro.product.first_api_level for Android L, L MR1 and M.

Change-Id: I0a27f9a75b4e696ff310db217d8c88303a82b901