Disable fingerprint checking for now as the pkg repository mirrors will
not receive the signature until later this week.

Approved by:	bapt
Queisce warnings for gperf -Wlogical-op-parentheses with parens to
explicitly define the logic
Add pmap_mapdev_attr() and pmap_kenter_attr() interfaces. pmap_set_memattr()
is slightly more complicated and is left unimplemented for now. Also
prevent pmap_mapdev() from mapping over the kernel and KVA regions if
devices happen to have high physical addresses.

MFC after:	2 weeks
The old trap.h (then trap_aim.h) actually had trap ID codes for Book-E CPUs.
Use it universally. Book-E traps may also need revisiting due to the
introduction of fixed-offset traps and the deprecation of IVORs in POWER
ISA 2.06, but that's very much an issue for another day.