Add graphite flags

Change-Id: I482279c0b9448cb05d56ce183affa30a4ac7bd4f
Signed-off-by: Paul Beeler <pbeeler80@gmail.com>
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
SCREWD OPTIMIZATIONS V1

Based on LiquidSmooth's commit: https://github.com/LiquidSmooth/android_build/commit/151bdb50158cf0485c4fa1e3b6429a8f2848f8ff
* This is an introduction of a BoardConfig.mk flag that will allow for us to SCREWD or Optimize builds like crazy.

This includes:

* Clang Optimized with -O3 Optimization
* Linker Optimizations
* Makes use of Google 4.8 Host since we track it anyways
* Graphite Flags (With call options I brought along from watching SaberMod development)
* Many other gcc flags to optimize the build also tucked away in cc-call options to keep clang from touching them and erroring out.

Note: Strict Aliasing is not included but I'll look into adding it in the future.

To use Place flag SCREWD=true in BoardConfig.mk of your device tree.

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Change-Id: Ia27cc2f5a8be14df3173d4813509baa8d90d7fff