script/gen_fvp_*_yaml.sh: reduce the connection value to 10 sec

The connection value indicates how often LAVA cleans the feedback
channels, otherwise heavy log on these channels without
reading/cleaning may hang the models.

Signed-off-by: Leonardo Sandoval <leonardo.sandoval@linaro.org>
Change-Id: I5c82c3ebe123100be4bcc0a59994ecf44ecc85cb
2 files changed