tinyxml: upgraded package to upstream

Upgraded dev-libs/tinyxml to version 2.6.2-r2 on amd64

tinyxml is included by our touch project library, which will be
compiled on host only.

reference CL: CL:*240776

TEST=emerge dev-libs/tinyxml on host.
Manual test to compile the library inside the directory
~/trunk/src/platform/experimental-touch-fw/modules/centroiding using

Change-Id: I482cbcba63c5ebbd5ff55ab9f4058b7d45eba8cc
Reviewed-on: https://chromium-review.googlesource.com/319700
Commit-Ready: Tai-Hsu Lin <sheckylin@chromium.org>
Tested-by: Tai-Hsu Lin <sheckylin@chromium.org>
Reviewed-by: Tai-Hsu Lin <sheckylin@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
7 files changed