lava_helper_configs: qemu/mps2-an521: disable the DefaultProfileS config

The DefaultProfileS config is hanging in lava. Disable the config until we
figure out what's going on.

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
Change-Id: I2d1a33954008e963267a6069df01f78129af8eb6
1 file changed