- in pmap_pte_spill(), the victim PTE could be using the secondary hash,
in which case its pvo entry is actually in the other bucket. use the
correct bucket for the victim pvo when moving it to the front of its list.
- similarly, in pmap_pvo_remove(), if the pteidx is pre-computed for us,
it might actually point to the other bucket if the entry is using the
secondary hash. adjust ptegidx if this is the case.
these should fix PRs 18645 and 18736.
while I'm here, wrap line lines and do some other misc cleanup.
4017fd1809