lava_wait_jobs: Use format to avoid specifying type

The print for timeout expiring is using the
wrong format specifier. Just use the format
method on strings when printing to avoid
specifying at all.

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Change-Id: Ida8e5a625fd764afe0f1bfdee6c11cbefa340e51
1 file changed