sys-libs/glibc: add 2.32 release

This adds a new ebuild for glibc 2.32 with minimal changes from
Gentoo upstream in parallel with the existing 2.27 ebuild.

There are 9 local patches on top of glibc 2.32 and 3 upstream
backports.

BUG=chromium:1171287
TEST=Local builds on Eve, Kevin and Veyron-Minnie

Disallow-Recycled-Builds: test-failures
Change-Id: I16d0f3a13767b7c60511c5ec05fa07ff4fbebcec
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2815214
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Manoj Gupta <manojgupta@chromium.org>
13 files changed