intel-gpu-tools: upgraded package to upstream

Upgraded x11-apps/intel-gpu-tools to version 1.12 on amd64, x86

i915 developers have been requesting debugging info from some of the
newer tools. This rev makes tools like "intel_reg" available to us in
test images. Also, remove old patch files.

Note: It was necessary to pass the "--unstable-ok" option when running
cros_portage_upgrade to make this version available.

BUG=None
TEST=`emerge --search intel-gpu-tools` shows version 1.12

Change-Id: I8d81c8a2e5fff27d1c8ff021b664c90d081995eb
Signed-off-by: Kevin Strasser <kevin.strasser@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/302779
Tested-by: Brian Wilson <brian.wilson@intel.com>
Reviewed-by: Dominik Behr <dbehr@chromium.org>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
7 files changed