scsi: libsas: Simplify sas_check_eeds()

scsi: libsas: Simplify sas_check_eeds()

In sas_check_eeds() there is an empty branch. We can reverse the test
expression and then remove the empty branch. Also the test expression is a
little bit complex so it deserves an individual function. And make the
continuing prototype lines indented after the opening parenthesis to follow
the standard coding style.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20230421093744.1583609-2-yanaijie@huawei.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>