As of tzcode 2020b the timezone data is encoded using the 'slim' format
instead of the previous 'fat'. This exposes a number of bugs in GLib,
so backport the fixes to improve the parser.
[ YOCTO #14106 ]
(From OE-Core rev: 8a367cbbf092339a8c82c680a2565567b594b6c6)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>