sys-libs/ldb: Uprev from version 2.0.12 to 2.4.1

sys-libs/ldb is a dependency of net-fs/samba which is being uprevved
to 4.15.0 which has a dependency requirement for tdb of >=2.4.1 and
<2.5.0.

Further to the above crrev.com/c/3288388 removes sys-libs/ldb from
chromiumos-overlay back to portage-stable (hence the added files). This
was previously done to allow patching of upstream, but now these patches
have merged back don't require any excessive patching. The files that
remain in chromiumos-overlay are the WAF cross-compilation answers as
they are required to stay there (compilation fails if moved to
portage-stable).

BUG=chromium:1261791, chromium:1261790
TEST=emerge-{hatch,kevin,kevin64} ldb, deploy and test

Cq-Depend: chromium:3260296, chromium:3260297, chromium:3260298
Change-Id: Iad6686732844091ed438c7b7486732e84c555642
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3260299
Tested-by: Ben Reich <benreich@chromium.org>
Reviewed-by: Josh Simmons <simmonsjosh@google.com>
Reviewed-by: François Degros <fdegros@chromium.org>
Commit-Queue: Ben Reich <benreich@chromium.org>
7 files changed