scsi: mptconfig: fix misuse of MPTSAS_CONFIG_PACK

These issues cause respectively a QEMU crash and a leak of 2 bytes of
stack.  They were discovered by VictorV of 360 Marvel Team.
Reported-by: NTom Victor <i-tangtianwen@360.cm>
Cc: qemu-stable@nongnu.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

hw/scsi/mptconfig.c

@@ -203,7 +203,7 @@ size_t mptsas_config_manufacturing_1(MPTSASState *s, uint8_t **data, int address
 {
     /* VPD - all zeros */
     return MPTSAS_CONFIG_PACK(1, MPI_CONFIG_PAGETYPE_MANUFACTURING, 0x00,
-                              "s256");
+                              "*s256");
 }
 
 static
@@ -328,7 +328,7 @@ size_t mptsas_config_ioc_0(MPTSASState *s, uint8_t **data, int address)
     return MPTSAS_CONFIG_PACK(0, MPI_CONFIG_PAGETYPE_IOC, 0x01,
                               "*l*lwwb*b*b*blww",
                               pcic->vendor_id, pcic->device_id, pcic->revision,
-                              pcic->subsystem_vendor_id,
+                              pcic->class_id, pcic->subsystem_vendor_id,
                               pcic->subsystem_id);
 }