scsi: qedi: Demote seemingly unintentional kerneldoc header

This is the only use of kerneldoc in the source file and no descriptions
are provided.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/qedi/qedi_main.c:1969: warning: Function parameter or member 'qedi' not described in 'qedi_get_nvram_block'

Link: https://lore.kernel.org/r/20200723122446.1329773-37-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@cavium.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qedi/qedi_main.c

@@ -1960,7 +1960,7 @@ void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu)
 	qedi_ops->ll2->start(qedi->cdev, &params);
 }
 
-/**
+/*
  * qedi_get_nvram_block: - Scan through the iSCSI NVRAM block (while accounting
  * for gaps) for the matching absolute-pf-id of the QEDI device.
  */