[SCSI] qla1280: eliminate wasted space in request and response ring

i think there is wasted space in allocated pages for request and
response rings.  The allocations are made with REQUEST_ENTRY_CNT + 1
and RESPONSE_ENTRY_CNT + 1, but they are set with 256 and 16.

So we got more pages, which we dont use very much so eliminate them.
Signed-off-by: Johannes Dickgreber <tanzy@gmx.de>
Acked-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/qla1280.h

@@ -91,8 +91,8 @@
 #define INVALID_HANDLE			(MAX_OUTSTANDING_COMMANDS + 2)
 
 /* ISP request and response entry counts (37-65535) */
-#define REQUEST_ENTRY_CNT		256 /* Number of request entries. */
-#define RESPONSE_ENTRY_CNT		16  /* Number of response entries. */
+#define REQUEST_ENTRY_CNT		255 /* Number of request entries. */
+#define RESPONSE_ENTRY_CNT		63  /* Number of response entries. */
 
 /*
  * SCSI Request Block structure  (sp)  that is placed