scsi: libfc: sanitize E_D_TOV and R_A_TOV setting in fcp

scsi: libfc: sanitize E_D_TOV and R_A_TOV setting in fcp

When setting the FCP timeout we need to ensure a lower boundary
for E_D_TOV and R_A_TOV, otherwise we'd be getting spurious I/O
issues due to the fcp timer firing too early.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Orabug: 29511036

(cherry picked from commit 76e72ad117812bb79abf647ac40ca6df1740b729)
Signed-off-by: Rajan Shanmugavelu <rajan.shanmugavelu@oracle.com>
Reviewed-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Brian Maly <brian.maly@oracle.com>