MAINTAINERS: nolibc: add myself as co-maintainer

As discussed with Willy, Paul and Shuah add myself as maintainer for
the nolibc subsystem.

Link: https://lore.kernel.org/lkml/7afafb6c-9664-44a1-bc8f-d20239db1dd5@paulmck-laptop/Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>

MAINTAINERS

@@ -14979,6 +14979,7 @@ F:	include/linux/power/bq27xxx_battery.h
 
 NOLIBC HEADER FILE
 M:	Willy Tarreau <w@1wt.eu>
+M:	Thomas Weißschuh <linux@weissschuh.net>
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/nolibc.git
 F:	tools/include/nolibc/