graphite: use bero's implementation of graphite set globally

a kang from linaro's gitweb brought to you by tucan sam

Change-Id: I2580177efd5f71ba9882b95c16ab867ad2b98ebc
use -O3 for now

Change-Id: I0e0b35c9d1ef02d650ff04ca2895a9c00c283e1d