scsi: pm80xx: Add fatal error checks

Add fatal error checking for the pm8001_phy_control() and
pm8001_lu_reset() functions.

Signed-off-by: Changyuan Lyu <changyuanl@google.com>
Signed-off-by: Pranav Prasad <pranavpp@google.com>
Link: https://lore.kernel.org/r/20230526235155.433243-1-pranavpp@google.com


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>