board: tbs2910: disable CONFIG_GZIP

As that the resulting image is already very close to the
size limit, and that CONFIG_GZIP is not strictly required,
removing it shouldn't hurt.

With arm-linux-gnueabi-gcc 9.2.0-1 from the Parabola
GNU/Linux distribution we have the following size
reduction:
- text: 9752
- data: 0
- bss: 16
- total: 9768

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
Acked-by: Soeren Moch <smoch@web.de>
1 file changed