am b4950a59: added a simple way to swap memcpy for another function

Merge commit 'b4950a59dcd4fa7fa4adaec6c8429388c2640291' into eclair-plus-aosp

* commit 'b4950a59dcd4fa7fa4adaec6c8429388c2640291':
  added a simple way to swap memcpy for another function