[Buildroot] [git commit branch/next] toolchain/toolchain-external/toolchain-external-bootlin: update to 2023.08 toolchains

[Yann E. MORIN]

commit: https://git.buildroot.net/buildroot/commit/?id=530e6e97b106bb1f14333388f760992cf44bedaa
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next

A new version of Bootlin toolchains, 2023.08, has been recently
released. Besides the usual updates of GCC, binutils, GDB, kernel
headers, and C libraries, support for AArch64 BE with musl has been
enabled, which explains why there are two new toolchains and two new
test cases.

All test cases where successfully tested:

  https://gitlab.com/tpetazzoni/buildroot/-/pipelines/957304450/builds

Note that the sparcv8 uClibc toolchains are considered obsolete. They
are still available, but at some point we'll have to drop them from the
choice.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998 at free.fr>
---
 .../tests/toolchain/test_external_bootlin.py       |   28 +
 .../toolchain-external-bootlin/Config.in.options   | 1261 ++++++++++----------
 .../toolchain-external-bootlin.hash                |  824 ++++++-------
 .../toolchain-external-bootlin.mk                  |  422 +++----
 4 files changed, 1314 insertions(+), 1221 deletions(-)

Patch is too large, so refusing to show it