Code review, following every lpfc_nlp_get() call vs calls during error
handling, discovered cases of missing put calls.

Correct by adding ndlp kref puts in the respective error paths.

Also added comments to several of the error paths to record relationships
to reference counts.

Link: https://lore.kernel.org/r/20220506035519.50908-3-jsmart2021@gmail.comCo-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>