Add more USB class codes.

Obtained from:	libusb project at SourceForge
MFC after:	1 week
Use the "bSubslotSize" and "bSubFrameSize" fields to obtain the actual
sample size. According to the USB audio frame format specification
from USB.org, the value in the "bBitResolution" field can be less than
the actual sample size, depending on the actual hardware, and should
not be used for this computation.

PR:		192755
MFC after:	1 week
Remove vestiges of previous autofs.

Discussed with:	alfred@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Add Canadian Bilingual keyboard
Add LIBCRYPT to DPADD, remove LDFLAGS from LDADD, and sort the Makefile variables

This fixes "make checkdpadd"

Phabric: D620
Approved by: jmmv (mentor)
PR: 192729
MFC after: 5 days
Replace DPADD with DPSRCS to fix "make checkdpadd"

Phabric: D625
Approved by: jmmv (mentor)
Reviewed by: dim
PR: 192734
MFC after: 2 weeks
Add LIBCRYPTO and LIBSSL to DPADD

This fixes "make checkdpadd"

Phabric: D621
PR: 192761
Approved by: rpaulo (mentor)
MFC after: 2 weeks
Backport r197824, r213427 and r213960 from LLVM trunk:

  r197824 | rdivacky | 2013-12-20 19:08:54 +0100 (Fri, 20 Dec 2013) | 2 lines

  Implement initial-exec TLS for PPC32.

  r213427 | hfinkel | 2014-07-19 01:29:49 +0200 (Sat, 19 Jul 2014) | 7 lines

  [PowerPC] 32-bit ELF PIC support

  This adds initial support for PPC32 ELF PIC (Position Independent Code; the
  -fPIC variety), thus rectifying a long-standing deficiency in the PowerPC
  backend.

  Patch by Justin Hibbits!

  r213960 | hfinkel | 2014-07-25 19:47:22 +0200 (Fri, 25 Jul 2014) | 3 lines

  [PowerPC] Support TLS on PPC32/ELF

  Patch by Justin Hibbits!

Reviewed by: jhibbits
Approved by: dim
Add the patch commited in r270147.
Deal explicitly with possible failures of make_dev_alias_p() in GEOM.

Submitted by:   Mariusz Zaborski <oshogbo@FreeBSD.org>
MFC after:      3 days
There exists a possible sequence of page table page allocation failures
starting with a superpage demotion by pmap_enter() that could result in
a PV list lock being held when pmap_enter() is just about to return
KERN_RESOURCE_SHORTAGE.  Consequently, the KASSERT that no PV list locks
are held needs to be replaced with a conditional unlock.

Discussed with:	kib
X-MFC with:	r269728
Sponsored by:	EMC / Isilon Storage Division
Minor fixes to convert-keymap.pl (conversion of 8bit characters in the form
'x' with high bit set) and to KBDFILES.map (fix encodings and comment out a
few redundant keymap files).

MFC after:	3 days
Fix minor problems found while converting to NEWCONS format.

MFC after:	3 days
Make note about reset vs RTOE actions...
Create the native-xtools target. This target creates only the cross
building toolchain for the host computer. This toolchain produces
TARGET_ARCH and assumes the rest of the system contains libraries for
the target. It is intended to be used in a "qemu-user jail" where all
the binaries would otherwise be the target architecture's to build
ports. However, emulation of the compilers is too slow, so we build
native binaries for that. Rather than use the xdev produced binaries,
with all their weird links and paths, these binaries use the native
paths. They will not work unless installed into the qemu-user jail.

Differential Revision: https://phabric.freebsd.org/D518
Reviewed by: sbruno@
Fix a few conversion problems (e.g. when a keymap is derived from ISO8859-1,
but shall provide an Euro sign - similar for Japanese Yen).

The Brazilian keymap "br.kbd" now has accents, by default - the no-accents
version has been renamed to "br.noacc.kbd".

MFC after:	3 days
For vendors like Juniper, extensibility for sockets is important.  A
good example is socket options that aren't necessarily generic.  To
this end, OSD is added to the socket structure and hooks are defined
for key operations on sockets.  These are:
o   soalloc() and sodealloc()
o   Get and set socket options
o   Socket related kevent filters.

One aspect about hhook that appears to be not fully baked is the return
semantics (the return value from the hook is ignored in hhook_run_hooks()
at the time of commit).  To support return values, the socket_hhook_data
structure contains a 'status' field to hold return values.

Submitted by:	Anuranjan Shukla <anshukla@juniper.net>
Obtained from:	Juniper Networks, Inc.
Destroy the "qdiffsample_zone" UMA zone on unload to avoid a use-after-unload
panic easily triggered by running "sysctl -a" after unload.

Reported and tested by:	Grenville Armitage <garmitage@swin.edu.au>
MFC after:	1 week
New DTS files to suppport the SAM9260EK eval board. Derived, in part,
from the SAM9G20EK dts files (so that file is GPL'd).
Add support for -X, which installs the native cross tools for qemu
operations. Doesn't install qemu nor setup the jail, yet.