[SCSI] drivers/scsi/FlashPoint.c: untypedef struct _SCCB

* struct _SCCB => struct sccb
* PSCCB => struct sccb *
* SCCB => struct sccb

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>