This patch updates and enable the generation of native binutils, as
part of the system build.
To get binutils on the target system, set MKBINUTILS=yes on the command
line.
Change-Id: I0dc24b30123e943e1e9eed9fcf30c9dea2eab56a
They are used as build tools for cross compilation. This import does
not include the full distribution. Rather, it sports a shell script
that will download and patch the distribution when compiled from
/usr/src/tools (yet to be committed). This part of the source tree is
only necessary for cross compilation. It's not used or compiled for
native builds.
