expect-lava/linux.inc: Add fast-fail clause

To account for cases like
https://tf.validation.linaro.org/scheduler/job/1890628 :

[    0.057852] smp: Bringing up secondary CPUs ...
[    1.128060] CPU1: failed to come online
[    1.128114] CPU1: failed in unknown state : 0x0
[    2.190234] CPU2: failed to come online
[    2.190289] CPU2: failed in unknown state : 0x0
[    3.252398] CPU3: failed to come online
[    3.252453] CPU3: failed in unknown state : 0x0

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Iff6c543ed2053e8e425567054b1a252285fb6e51
1 file changed