Remove all the big-endian arm architectures (ixp425 and ixp435)
support in the kernel and associated drivers.

Differential Revision:  https://reviews.freebsd.org/D16257

- Primarily http -> https
- Primarily FreeBSD project URLs

to add actions that run when a TCP frame is sent or received on a TCP
session in the ESTABLISHED state. In the base tree, this functionality is
only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
and cc_vegas congestion control modules.

Presently, we incur overhead to check for hooks each time a TCP frame is
sent or received on an ESTABLISHED TCP session.

This change adds a new compile-time option (TCP_HHOOK) to determine whether
to include the hhook(9) framework for TCP. To retain backwards
compatibility, I added the TCP_HHOOK option to every configuration file that
already defined "options INET". (Therefore, this patch introduces no
functional change. In order to see a functional difference, you need to
compile a custom kernel without the TCP_HHOOK option.) This change will
allow users to easily exclude this functionality from their kernel, should
they wish to do so.

Note that any users who use a custom kernel configuration and use one of the
congestion control modules listed above will need to add the TCP_HHOOK
option to their kernel configuration.

Reviewed by:	rrs, lstewart, hiren (previous version), sjg (makefiles only)
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D8185

each of the existing kernel configs.  This gives a place to put config
that applies to the entire arch.

Add the ARM_NEW_PMAP option to std.armv6.  This is working well in early
testing and it's time for wide exposure, but it's still nice to be able
to fall back to the old implementation for testing when a problem comes
along.  Eventually the option and the old implementation will go away.

The opportunity now exists to move a whole lot of boilerplate from all the
arm kernel config files into std.arm*, but that's a commit for another day.

client/server.  While here, remove duplicate NFSCL from sys/conf/NOTES.

Approved by:	rmacklem

'options<tab><tab>', per long standing (but recently not so strictly
enforced) convention.

rampently incosnsitent usage which made cut and paste from one file
to another look ugly.

the architecture.  Move the other contents into each of the individual
config files.

Requested by:	imp