Use daddr_t and not daddr32_t in boot media.

At a minimum, amd64/i386 should now boot from 4TB GPT formatted disks.

More daddr32_t terminations with extreme prejudice to follow.

Tested by various,

Use daddr_t and not daddr32_t in boot media.

At a minimum, amd64/i386 should now boot from 4TB GPT formatted disks.

More daddr32_t terminations with extreme prejudice to follow.

Tested by various, in snaps for a few days.

ok deraadt@

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Add sizes for free() in libsa for amd64 and i386.

OK tom@, deraadt@

Switch i386 boot code to libsa MI softraid.

Rename softraid boot files, which are currently in an MD location. This
will allow us to bring in a MI softraid.{c,h} in lib/libsa.