Move hosts.lpd and printcap to usr.sbin/lpr/lpd/

This leverages CONFS to handle the install

Approved by:	re (blanket, pkgbase), bapt (mentor)
Differential Revision:	https://reviews.freebsd.org/D17238

etc/Makefile

@@ -22,10 +22,6 @@ BIN1=	\
 
 # NB: keep these sorted by MK_* knobs
 
-.if ${MK_LPR} != "no"
-BIN1+=	hosts.lpd printcap
-.endif
-
 .if ${MK_OPENSSL} != "no"
 SSL=	${SRCTOP}/crypto/openssl/apps/openssl.cnf
 .endif

usr.sbin/lpr/lpd/Makefile

@@ -1,6 +1,7 @@
 #	From: @(#)Makefile	8.1 (Berkeley) 6/6/93
 # $FreeBSD$
 
+CONFS=	hosts.lpd printcap
 PROG=	lpd
 MAN=	lpd.8
 SRCS=	lpd.c printjob.c recvjob.c lpdchar.c modes.c