scsi: lpfc: Fix memory leak when nvmeio_trc debugfs entry is used

Right after phba->nvmeio_trc is kzalloc'ed, phba->nvmeio_trc is set to
NULL and the memory reference to free the kzalloc'ed memory is lost.
Remove the phba->nvmeio_trc NULL ptr assignment after kzalloc.
phba->nvmeio_trc is freed in lpfc_debugfs_terminate.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Message-ID: <20250915180811.137530-10-justintee8345@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>