Use prebuilt in-tree audit2allow

Linux only. Audit2allow is a python executable. Install a sh wrapper around
the python executable that points to the appropriate prebuilt library and
python module.

(cherry picked from commit e537f3838492a31456245498db9988f519cf29f0)
Bug: 20825978
Change-Id: I991cfec229e542d2489672fbbc597feca8ec33cc
27 files changed