Regenerate files and re-add android changes.

Update to the jemalloc top of tree and regenerate all of the files
using configure.

Also, re-add all of small the android changes.

In addition, add a new define to allow the chunk size to be changed
easily. Use this define to set the chunk size to 512K for the 32 bit
library, and set the chunk size to 2MB for the 64 bit library.

Bug: 23633724
Change-Id: I9daef0428e6c22e56eb7b05089f9a3f6e2f86d82
25 files changed