Update to libsepol 2.4.

Update to current upstream libsepol release.
Includes a variety of bug and memory leak fixes, performance
optimizations for neverallow checking, and improved error
reporting.  Introduces cil, the SELinux Common Intermediate
Language (CIL) compiler, which should prove useful in
creating policy tooling and performing programmatic policy
transformations/optimizations, but does not yet enable
building cil in the Android.mk file; this will come later
as a separate change.

Change-Id: If08ba195e156dd23bc07e2005d803abbed4a90bc
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
128 files changed