weston: Port small fix for always creating a hash table

weston: Port small fix for always creating a hash table

This is a attempting for SPEC-5208 which brings in two changes from
Weston main, which could potentially fix the issue.

Bug-AGL: SPEC-5208
Change-Id: I7d350797bddae9e3aef1ab7c8816f8269f2a14e7
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/30138
ci-image-build: Jenkins Job builder account
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
(cherry picked from commit 64bb35267deb05e730232230f2e5bf19ad7bcdac)
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/30207
Reviewed-by: Scott Murray <scott.murray@konsulko.com>
ci-image-boot-test: Jenkins Job builder account
Tested-by: Jenkins Job builder account