Sync x11-libs, wayland with upstream

Upgraded wayland-protocols to 1.26
Upgraded wayland, wayland-scanner to 1.21
Upgraded libX11, compose-tables to 1.8.1
Synced ebuilds.

BUG=none
TEST=Build and deploy tatl to DUT

Change-Id: I0e08fee360a577ed501f883b4803bd8d6d5eceec
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3841211
Tested-by: James Ye <jamesye@google.com>
Reviewed-by: Fergus Dall <sidereal@google.com>
Commit-Queue: James Ye <jamesye@google.com>
13 files changed