mps(4) starts enumerating at da8, not da0

[Sean Bruno]

Not sure why, but on a new LSI adapter I have in test here, mps(4) seems
to want to start enumerating devices at da8 ... this breaks some of my
"wiring hints" as it doesn't have da0-da7.  Not sure what's up here?

mps0 at pci0:4:0:0:        class=0x010700 card=0x30201000 chip=0x00721000
rev=0x03 hdr=0x00
    vendor     = 'LSI Logic / Symbios Logic'
    device     = 'SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon]'
    class      = mass storage
    subclass   = SAS

mps0: <LSI SAS2008> port 0x8000-0x80ff mem
0xdfc00000-0xdfc03fff,0xdfb80000-0xdfbbffff irq 40 at device 0.0 on pci4
mps0: Firmware: 14.00.01.00, Driver: 14.00.00.01-fbsd
mps0: IOCCapabilities:
185c<ScsiTaskFull,DiagTrace,SnapBuf,EEDP,TransRetry,IR>


-bash-4.2$ sudo camcontrol devlist -v
scbus0 on mps0 bus 0:
<SEAGATE ST3300657SS 0008>         at scbus0 target 10 lun 0 (pass0,da8)
<SEAGATE ST3300657SS 0008>         at scbus0 target 11 lun 0 (pass1,da9)
<SEAGATE ST3300657SS 0008>         at scbus0 target 12 lun 0
(pass2,da10)
<SEAGATE ST3300657SS 0008>         at scbus0 target 13 lun 0
(pass3,da11)
<SEAGATE ST3300657SS 0008>         at scbus0 target 14 lun 0
(pass4,da12)
<SEAGATE ST3300657SS 0008>         at scbus0 target 15 lun 0
(pass5,da13)
<SEAGATE ST3300657SS 0008>         at scbus0 target 16 lun 0
(pass6,da14)
<SEAGATE ST3300657SS 0008>         at scbus0 target 17 lun 0
(pass7,da15)
<SEAGATE ST3300657SS 0008>         at scbus0 target 18 lun 0
(pass8,da16)
<SEAGATE ST3300657SS 0008>         at scbus0 target 19 lun 0
(pass9,da17)
<SEAGATE ST3300657SS 0008>         at scbus0 target 20 lun 0
(pass10,da18)
<SEAGATE ST3300657SS 0008>         at scbus0 target 21 lun 0
(pass11,da19)
<LSI CORP Bobcat 0700>             at scbus0 target 22 lun 0
(ses0,pass12)
scbus-1 on xpt0 bus 0:
<>                                 at scbus-1 target -1 lun -1 (xpt0)