Point to GCC 4.7

- Include config.h before system header files

Change-Id: I1bf132d64dc37ea8b6736b2b90b5c30fd6fb8b56
oprofile: Don't set HAVE_LIBBFD when not using the linaro toolchain

Adjust c227af4 for linaro toolchains
Revert "Point to GCC 4.7"

This reverts commit 4b4d25384f30511a49366020a1bf5c7d03ad6b2e.
Optipng -nc -nb -o7

Change-Id: I7b46ef5804bf7273cdce9102ad4f537566370525