Integrate carcass of libspl/i/s/vtoc.h into i/s/efi_partition.h

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12996

lib/libspl/include/sys/Makefile.am

@@ -43,6 +43,5 @@ libspl_HEADERS = \
 	va_list.h \
 	varargs.h \
 	vnode.h \
-	vtoc.h \
 	wmsum.h \
 	zone.h

lib/libspl/include/sys/vtoc.h

@@ -1,58 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-
-/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
-/*	  All Rights Reserved  	*/
-
-
-#ifndef _SYS_VTOC_H
-#define	_SYS_VTOC_H
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-/*
- * Partition identification tags
- */
-#define	V_UNASSIGNED	0x00		/* unassigned partition */
-#define	V_USR		0x04		/* Usr filesystem */
-#define	V_RESERVED	0x0b		/* SMI reserved data */
-
-/*
- * error codes for reading & writing vtoc
- */
-#define	VT_ERROR	(-2)		/* errno supplies specific error */
-#define	VT_EIO		(-3)		/* I/O error accessing vtoc */
-#define	VT_EINVAL	(-4)		/* illegal value in vtoc or request */
-#define	VT_ENOSPC	(-6)		/* requested space not found */
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif	/* _SYS_VTOC_H */