sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

ocs_fc(4): Fix a typo in an error message

- s/faild/failed/

MFC after: 5 days

ocs_fc(4): Remove double words in source code comments

- s/to to/to/

MFC after: 3 days

ocs_fc: Support persistent topology feature

Summary: Enable persistent topology across power cycles/firmware resets.

Reviewed by: mav

MFC after: 3 days

Differential Revision: https://reviews.freebsd.org/D34425

ocs_fc: Emulex Gen 7 HBA support.

Emulex Gen7 adapter support in ocs_fc driver.

Reviewed by: mav, ken

ocs_fc: clean up empty lines in .c and .h files

Fixed issues reported by coverity scan.

Approved by: mav
MFC after: 3 weeks

ocs_fc(4): Fix GCC build (-Wredundant-decls)

These objects are defined earlier in the same file; an extern declaration
after definition is redundant.

Broken in r331766 (introduction of ocs_fc(4)).

Sponsored by: Dell EMC Isilon

Bring in the Broadcom/Emulex Fibre Channel driver, ocs_fc(4).

The ocs_fc(4) driver supports the following hardware:

Emulex 16/8G FC GEN 5 HBAS
LPe15004 FC Host Bus Adapters
LPe160XX FC Host Bus Adapters

Emulex 32/16G FC GEN 6 HBAS
LPe3100X FC Host Bus Adapters
LPe3200X FC Host Bus Adapters

The driver supports target and initiator mode, and also supports FC-Tape.

Note that the driver only currently works on little endian platforms. It
is only included in the module build for amd64 and i386, and in GENERIC
on amd64 only.

Submitted by: Ram Kishore Vegesna <ram.vegesna@broadcom.com>
Reviewed by: mav
MFC after: 5 days
Relnotes: yes
Sponsored by: Broadcom
Differential Revision: https://reviews.freebsd.org/D11423