SQLite: Enable fdatasync for SQLite

SQLite library recommends usage of fdatasync when available.
Since it is available for linux, enable it. This gives better
performance compared to fsync.

Change-Id: I47d5fb9cb1e8331729b54d77f10f7499e028269d
Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/sqlite into mr1-staging
Merge tag 'android-4.3_r2.1' into cm-10.2

Android 4.3 release 2.1
Merge remote-tracking branch 'cm/cm-10.2' into HEAD