I was going to just re-send the previous versions of these, but after
looking I realized it would have the same misuse of vmstate_register(),
and I didn't have a way to work around it. I had already done the
VMSTATE_VSTRUCT work earlier, so I merged that in.
Changes from v2:
* Added VMSTATE_VSTRUCT types of vmstate macros that allow the
specific structure version used to be specified.
* Reworked the KCS vmstate code to use the new VMSTATE_VSTRUCT
macros.
Changes from v1:
* Validate the data values in pre_load functions.
* For KCS, instead of an old function, create a separate vmstate
structure for the new version. The name on the old vmstate
structure wasn't specific enough, so a new name was needed,
The old structure is set up to never be sent, but it can be
received.
