dev-util/spirv-headers,dev-util/spirv-tools: update patches for vksp

Also installed new needed files by vksp in
`/usr/include/spirv-tools/vksp`

BUG=None
TEST=emerge-brya spirv-tools spirv-headers

Cq-Depend: chromium:5352251
Change-Id: I86cebb637f5f490c39d4f80e05871e1745680e39
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/5355626
Tested-by: Romaric Jodin <rjodin@chromium.org>
Commit-Queue: Romaric Jodin <rjodin@chromium.org>
Reviewed-by: Prahlad Kilambi <prahladk@google.com>
5 files changed