Fix AER issues.
 - Made AER sysfs entry point return "Operation not permitted" to
   OneConnect HBAs
 - Stop and abort all I/Os on HBA for AER uncorrectable non-fatal error
   handling
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>