libXaw, libXpm: upgraded packages to upstream

Upgraded x11-libs/libXaw to version 1.0.13-r1 on amd64
Upgraded x11-libs/libXpm to version 3.5.13 on amd64

BUG=chromium:1121686
TEST=CQ passes

Change-Id: Iec66e3c4807fe04e8b4d66a3f7d5d536551bae94
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2378126
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Allen Webb <allenwebb@google.com>
12 files changed