ci: fix test configs failures due to expect timeout

Fixed the expect failure arised due to this patch [1].
Due to the fact that the expect script matches the strings coming
in the order on the UART, it failed to match the 'x30' string.

[1]: https://review.trustedfirmware.org/c/ci/tf-a-ci-scripts/+/18680
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

Change-Id: Iddfaeacfad46dda73cf3ad655390a034f5984afe
8 files changed