lpfc: mark functions as static in lpfc/lpfc_init.c

Mark functions as static in lpfc/lpfc_init.c because they are not used
outside this file.

This eliminates the following warning in lpfc/lpfc_init.c:
drivers/scsi/lpfc/lpfc_init.c:652:1: warning: no previous prototype for ‘lpfc_hba_init_link’ [-Wmissing-prototypes]
drivers/scsi/lpfc/lpfc_init.c:753:1: warning: no previous prototype for ‘lpfc_hba_down_link’ [-Wmissing-prototypes]
drivers/scsi/lpfc/lpfc_init.c:3434:1: warning: no previous prototype for ‘lpfc_sli4_fcf_redisc_wait_tmo’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: James Smart <james.smart@emulex.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>