sif: Refactor PQP state out of sif_dev.

sif: Refactor PQP state out of sif_dev.

Prepare handling of PQPs for the additional complexity
of resurrect upon errors and query for undetected
error conditions by moving some of the state
now directly in sif_dev into a new sif_pqp_info
struct.

Already complex logic for PQP handling is going to
increase in complexity. We need to consolidate
to be able to keep clean and easily maintainable
interfaces.

Orabug: 24715634

Signed-off-by: Knut Omang <knut.omang@oracle.com>