libbsm: Rename package to audit-lib

This is part of audit, so use the new LIB_PACKAGE feature to name the
package audit-lib, rather than libbsm.

MFC after:	1 day
Reviewed by:	bapt
Sponsored by:	https://www.patreon.com/bsdivy
Differential Revision:	https://reviews.freebsd.org/D52789

include/Makefile

@@ -94,14 +94,14 @@ BSM=		audit.h \
 		audit_fcntl.h \
 		audit_kevents.h \
 		audit_socket_type.h
-BSMPACKAGE=	libbsm
+BSMPACKAGE=	audit
 BSMDIR=		${INCLUDEDIR}/bsm
 
 .PATH: ${SRCTOP}/sys/security
 SECAUDIT=	audit/audit.h \
 		audit/audit_ioctl.h \
 		audit/audit_private.h
-SECAUDITPACKAGE=	libbsm
+SECAUDITPACKAGE=	audit
 SECAUDITDIR=	${INCLUDEDIR}/security/audit
 
 .PATH:	${SRCTOP}/sys/cam