qemu: upgraded package to upstream

Upgraded app-emulation/qemu to version 2.6.0 for all

BUG=None
TEST=ran local tests; precq passes

Change-Id: I9bb4b29479f68c1a302149a157c41a0dc3ab14d7
Reviewed-on: https://chromium-review.googlesource.com/344741
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
8 files changed