scsi: aic7xxx: make a couple of functions static

Functions ahc_devlimited_syncrate and ahc_linux_initialize_scsi_bus are
declared static in their prototypes but are missing in their
definitions, so add the missing static.

Cleans up sparse warnings: symbol 'ahc_devlimited_syncrate' was not
declared. Should it be static?  symbol 'ahc_linux_initialize_scsi_bus'
was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aic7xxx/aic7xxx_core.c

@@ -2212,7 +2212,7 @@ ahc_free_tstate(struct ahc_softc *ahc, u_int scsi_id, char channel, int force)
  * by the capabilities of the bus connectivity of and sync settings for
  * the target.
  */
-const struct ahc_syncrate *
+static const struct ahc_syncrate *
 ahc_devlimited_syncrate(struct ahc_softc *ahc,
 			struct ahc_initiator_tinfo *tinfo,
 			u_int *period, u_int *ppr_options, role_t role)

drivers/scsi/aic7xxx/aic7xxx_osm.c

@@ -1141,7 +1141,7 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa
  * or forcing transfer negotiations on the next command to any
  * target.
  */
-void
+static void
 ahc_linux_initialize_scsi_bus(struct ahc_softc *ahc)
 {
 	int i;