[autotest] Update shadow config in container with FQDN of db/afe server name.

container may not be able to resolve hostname like cautotest. The FQDN should be
used in db and afe server name in container's shadow config.

TEST=lxc_functional_test. verify with a test drone

Change-Id: I6cf337edc8d36e8fbb9e58cbe5e43e3227b65f10
Reviewed-on: https://chromium-review.googlesource.com/262214
Trybot-Ready: Dan Shi <dshi@chromium.org>
Tested-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
1 file changed