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

* commit 'e8a6c35785a9007d19ed000273a84147984d19a0':
  Adding make files with the new read-only product property ro.product.first_api_level for Android L, L MR1 and M.

Change-Id: Ic9573ff44b983cb481680ad6fae655e837980fde