r306186 broke ipfw for MIPS32-BE

[Eugene Grosbein]

Hi!

Ruslan, please take a look.

> For reference - this breaks sooptcopyin() on MIPS32 BE. Undoing this
> commit fixes things. :)
>
> (it breaks ipfw. )

I acknowledge this running FreeBSD 12/mips with real MIP32 big endian
hardware. ipfw show now complains:
ipfw: retrieving config failed: Invalid argument

And there is a line in a dmesg: ipfw_ctl3 invalid option 0v0

"ipfw add" is broken too:

# ipfw add 10 allow ip from any to any
ipfw: getsockopt(IP_FW_XADD): Invalid argument

dmesg says: ipfw: ipfw_ctl3 invalid option 11521v0

Rollback of r306186 fixes this.

Eugene Grosbein