[LTP] [PATCH v3 2/2] doc/support: Update the oldest tested distros

[Petr Vorel]

Update changes from previous commit (CentOS 7 replaced by Ubuntu 16.04
LTS xenial and openSUSE Leap 42.2).

Also remove note about Debian 10 oldstable (buster), because since
June 2023, when Debian 12 bookworm was released as Debian stable,
the oldstable release codename alias points to Debian 11 bullseye
which uses quite new software (kernel 5.10, glibc: 2.31, gcc 10.2)
therefore not mentioned in the table.

Acked-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Li Wang <liwang@redhat.com>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 doc/Supported-kernel,-libc,-toolchain-versions.asciidoc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/doc/Supported-kernel,-libc,-toolchain-versions.asciidoc b/doc/Supported-kernel,-libc,-toolchain-versions.asciidoc
index e3d9cd92f..bdb3e44f3 100644
--- a/doc/Supported-kernel,-libc,-toolchain-versions.asciidoc
+++ b/doc/Supported-kernel,-libc,-toolchain-versions.asciidoc
@@ -19,12 +19,11 @@ NOTE: GitHub Actions does only build testing, passing the CI means only that
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 [align="center",options="header"]
-|==============================================================
+|===============================================================
 | Distro                       | kernel  | glibc | gcc   | clang
-| CentOS 7                     | 3.10    | 2.17  | 4.8.5 | -
+| openSUSE Leap 42.2           | 4.4     | 2.22  | 4.8.5 | -
 | Ubuntu 18.04 LTS bionic      | 4.15    | 2.27  | 7.3.0 | -
-| Debian 10 oldstable (buster) | 4.19.37 | 2.28  | 8.3.0 | 7.0
-|==============================================================
+|===============================================================
 
 Older distributions are not officially supported, which means that it
 may or may not work. It all depends on your luck. It should be possible
-- 
2.42.0