1.0.25.51: use WITH-RECURSIVE-SYSTEM-SPINLOCK

1.0.25.51: use WITH-RECURSIVE-SYSTEM-SPINLOCK

... instead of WITH-RECURSIVE-SPINLOCK because it's possible to
deadlock due to lock ordering with sufficiently unlucky interrupts as
demonstrated by test (:timer :parallel-unschedule) with low
probability.

This affects hash tables and some pcl locks.

Also, use WITH-RECURSIVE-MUTEX for packages.

Not a spinlock becuase it can be held for a long time and not a system
lock (i.e. with WITHOUT-INTERRUPTS) because conflicts are signalled
while holding the lock which I think this warrants a FIXME.