IB/qib: Prevent driver hang with unprogrammed boards

The time limit test now correctly checks against current jiffies to
avoid the hang.

Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>