python3: Disable pip to fix issues on the Autobuilders
As Python-3.4 pip is required and installed by default, pips installation
is bootstrapped using python wheels, this makes it complicated to patch,
by default the installation uses an absolute path to /tmp, on most cases
this would not be a problem, but since on the Autobuilders several Python
installations (for different archs) may be happening at the same time,
this shared resource utilization results in errors at do_install(), this
patch disables pip installation by default for now, until we have a
python3-pip package which we can easily patch in these situations.
Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
