dev-util/vulkan-headers: Upgrade to latest from Gentoo

- Upgrade to 1.1.92.0
- Set KEYWORDS="*"

CQ-DEPEND=CL:1396757
BUG=chromium:919179
TEST=emerge-$BOARD dev-util/vulkan-headers;
     emerge-$BOARD media-libs/vulkan-loader

Change-Id: Icb42afb5ec498d69ee1acb1ea00cafdf3035a6d3
Reviewed-on: https://chromium-review.googlesource.com/1396719
Commit-Ready: Chad Versace <chadversary@chromium.org>
Tested-by: Chad Versace <chadversary@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
2 files changed