Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- Use bus_foo() rather than bus_space_foo() and retire the bus tag and handle
from the softc.
- Rework the watchdog timer to match other NIC drivers:
- Start a timer in fe_init() that runs once a second and checks a counter
in the softc that is identical to the deprecated 'if_timer'.
- Just adjust the softc tx timeout value when sending packets instead of
scheduling the timer.
- Use IFQ_SET_MAXLEN().

Tested by: WATANABE Kazuhiro

s/sc_enaddr/enaddr/ to fix pc98 build.

Approved by: re (blanket)

Forced commit after moving mb86960.h from i386/isa/ic to dev/fe. It
is only used by the fe driver, and isn't MD.

don't pollute global namespace with valid_Ether_p, instead, prepend
fe_ to it.

Start each of the license/copyright comments with /*-, minor shuffle of lines

Use __FBSDID().
Also some minor style cleanups.

Supported C-NET(98)P2 PnP mode.

Submitted by: "Hirokazu WATANABE" <gwna@geocities.co.jp>
MFC after: 3 days

Always turned on 8bit access card support for the fe driver
both i386/pc98, so options FE_8BIT_SUPPORT was deleted.

Reviewed by: nyan

Fixed to support C-NET(9N)E.

The fe driver does not support pnp devices.

Moved prototypes of isa_alloc_resourcev() and isa_load_resourcev() to
isa/isavar.h, and added needed includes.

Remove unneeded #include <machine/clock.h>

Removed unneeded include files.

Submitted by: phk

- Newbus'ify and bus_space'ify.
- Separate bus dependent part and independent part.
- Moved source files to sys/dev/fe (repo copied).
- Fixed some comments by chi@bd.mbn.or.jp (Chiharu Shibata)

Tested by: bsd-nomads@clave.gr.jp and
FreeBSD98-testers@jp.freebsd.org