Move regdomain.xml to lib/lib80211/

This leverages CONFS to handle the install.  lib80211 was picked because it is
where this file is actually used from.

Approved by:	re (blanket, pkgbase), will (mentor)
Differential Revision:	https://reviews.freebsd.org/D17229

etc/Makefile

@@ -36,10 +36,6 @@ SSL=	${SRCTOP}/crypto/openssl/apps/openssl.cnf
 BIN1+=	rc.sendmail
 .endif
 
-.if ${MK_WIRELESS} != "no"
-BIN1+= regdomain.xml
-.endif
-
 .if ${MK_SENDMAIL} == "no"
 ETCMAIL=mailer.conf aliases
 .else

lib/lib80211/Makefile

@@ -1,5 +1,6 @@
 # $FreeBSD$
 
+CONFS=	regdomain.xml
 PACKAGE=lib${LIB}
 LIB=	80211
 SHLIBDIR?= /lib