'RELENG_6_0_0_RELEASE'.

This commit was manufactured to restore the state of the 6.0-RELEASE image.

connections to Bluetooth HID device. As soon as Bluetooth HID device
is powered off (or goes out of RF range) the stack will terminate both
connections. File descriptors for both connections will become active
on next select(2) call. Because bthidd(8) processes file descriptors
in order, it will detect descriptor for one of the closed connections
first and kill the session. However, there is still a second (active)
descriptor that used to point to the same session. bthidd(8) used to
assert() if it cant find session by file descriptor, which was wrong.

While I'm here fix a couple of typos in parser.y

Reported by:	Eric Anderson anderson AT centtech DOT com
MFC after:	3 days

That should fix the problem with invalid PSM returned from bthidcontrol.
Pointy hat goes to me.

PR:		misc/76107
Submitted by:	Hiroyuki Aizu < aizu at navi dot org >
MFC after:	1 day

Note: bthidd(8) is still not complete. Need to commit kernel
support (a-la Linux /dev/input) to feed HID events into kernel.
Also need to write bthidd(8) and bthidd.conf(5) man pages.