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
diff --git a/expect/crash_test.exp b/expect/crash_test.exp
index 1efd5a4..d6fbaf2 100644
--- a/expect/crash_test.exp
+++ b/expect/crash_test.exp
@@ -12,3 +12,4 @@
 expect_string "Unhandled Exception from EL2"
 
 source [file join [file dirname [info script]] exception_regs.inc]
+expect_string "x30"