Simon Glass 85d7dae377 test: Detect dead connections
When the connection to a board dies, assume it is dead forever until
some user action is taken. Skip all remaining tests. This avoids CI
runs taking an hour, with hundreds of 30-second timeouts all to no
avail.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-10-15 10:24:27 -06:00
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