Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Remove information and MLINK for MULTI_DRIVER_MODULE().
The macro was removed in r121129 almost 8 years ago.

PR: 150244
Submitted by: Gireesh Nagabhushana <dngireesh@avrita.com>
Approved by: re (kib)

Update function definitions and required include files to reflect
the current state of the system.

Approved by: alfred

mdoc(7) police: Use the new .In macro for #include statements.

Add MULTI_DRIVER_MODULE().

mdoc(7) police: protect trailing full stops of abbreviations
with a trailing zero-width space: `e.g.\&'.

- correct two typos
- Use NULL instead of 0 for pointers (style(9)!)

Submitted by: Joel Wilsson <siigron@sii.linuxsweden.nu>
MFC after: 37 days

mdoc(7) police: sort SEE ALSO xrefs (sort -b -f +2 -3 +1 -2).

Fixed missing and disorded includes in synopsis.

Removed bogus quotes in .Fn invocations. Single words don't need quoting.

Fix typo: s/DRIVERMODULE/DRIVER_MODULE/

PR: 25901
Submitted by: Maxime Henrion <mux@qualys.com>

Use type of modeventhand_t for the event handler (defined in module.h).
Add a reference to module(9) for more info about the event handler.

Add DRIVER_MODULE.9, the manual page describing the kernel driver
declaration macro.
Thanks to Sheldon for a big patch with language/mdoc fixes.

Reviewed by: asmodai, sheldonh