src.opts.mk: add WITHOUT_OPENSSL dependencies

A number of components require OpenSSL and fail to build if it is not
enabled.  As a first phase force these off under WITHOUT_OPENSSL.  A
second phase should make these more fine-grained, allowing the component
to build but without OpenSSL.

PR:		245931
Sponsored by:	The FreeBSD Foundation

share/mk/src.opts.mk

@@ -435,6 +435,10 @@ MK_OPENSSH:=	no
 MK_KERBEROS:=	no
 MK_KERBEROS_SUPPORT:=	no
 MK_LDNS:=	no
+MK_PKGBOOTSTRAP:=	no
+MK_SVN:=		no
+MK_SVNLITE:=		no
+MK_WIRELESS:=		no
 .endif
 
 .if ${MK_LDNS} == "no"