gcc: add a backport patch to fix an issue with tzdata 2024b

gcc: add a backport patch to fix an issue with tzdata 2024b

There is an issue in the std::chrono::tzdb parser that causes problems
since the tzdata-2024b release started using %z in the main format.

As a real world problem I encounter an issue with the waybar clock module,
which ignores the timezone setting and only shows system time.

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>