nvmecontrol: Add nvme 2.0 fields to read_logpage

Add the lpo, ot, csi and uuid_index fields to read_logpage. The logpage
command has not been updated to allow these to be specified.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D44683

nvmecontrol: Use the NVMEV macro instead of expanded versions

Reviewed by: imp
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D43597

sbin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

Improve nvmecontrol error reporting.

MFC after: 1 week
Sponsored by: iXsystems, Inc.

Add `nvmecontrol resv` to handle NVMe reservations.

NVMe reservations are quite alike to SCSI persistent reservations and
can be used in clustered setups with shared multiport storage.

MFC after: 10 days
Relnotes: yes
Sponsored by: iXsystems, Inc.

Add `nvmecontrol sanitize` command.

It allows to delete all user data from NVM subsystem in one of 3 methods.
It is a close equivalent of SCSI SANITIZE command of `camcontrol sanitize`,
so I tried to keep arguments as close as possible.

While there, fix supported sanitize methods reporting in `identify`.

MFC after: 2 weeks
Relnotes: yes
Sponsored by: iXsystems, Inc.