tools: libressl: fix build on MacOS

tools: libressl: fix build on MacOS

Making all in tests
depbase=`echo handshake_table.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
	gcc -DPACKAGE_NAME=\"libressl\" -DPACKAGE_TARNAME=\"libressl\" -DPACKAGE_VERSION=\"2.9.2\" -DPACKAGE_STRING=\"libressl\ 2.9.2\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"libressl\" -DVERSION=\"2.9.2\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_SYMLINK=1 -DHAVE_ERR_H=1 -DHAVE_READPASSPHRASE_H=1 -DHAVE_ASPRINTF=1 -DHAVE_MEMMEM=1 -DHAVE_READPASSPHRASE=1 -DHAVE_STRLCAT=1 -DHAVE_STRLCPY=1 -DHAVE_STRNDUP=1 -DHAVE_STRNLEN=1 -DHAVE_STRSEP=1 -DHAVE_TIMEGM=1 -DHAVE_GETPROGNAME=1 -DHAVE_SYSLOG=1 -DHAVE_POLL=1 -DHAVE_SOCKETPAIR=1 -DHAVE_ARC4RANDOM=1 -DHAVE_ARC4RANDOM_BUF=1 -DHAVE_ARC4RANDOM_UNIFORM=1 -DHAVE_TIMINGSAFE_BCMP=1 -DHAVE_CLOCK_GETTIME=1 -DHAVE_VA_COPY=1 -DHAVE___VA_COPY=1 -DSIZEOF_TIME_T=8 -I.  -I../include -I../include/compat -DLIBRESSL_INTERNAL -D__BEGIN_HIDDEN_DECLS= -D__END_HIDDEN_DECLS= -I ../crypto/modes -I ../crypto/asn1 -I ../ssl -I ../tls -I ../apps/openssl -I ../apps/openssl/compat -D_PATH_SSL_CA_FILE=\"../apps/openssl/cert.pem\" -I/Users/kevin/wrt/staging_dir/host/include  -D__STRICT_ALIGNMENT  -O2 -I/Users/kevin/wrt/staging_dir/host/include  -fpic -Wall -std=gnu99 -fno-strict-aliasing  -fno-strict-overflow -D_FORTIFY_SOURCE=2 -fstack-protector-strong  -Qunused-arguments -Wno-pointer-sign -MT handshake_table.o -MD -MP -MF $depbase.Tpo -c -o handshake_table.o handshake_table.c &&\
	mv -f $depbase.Tpo $depbase.Po
make[4]: *** No rule to make target `/Users/kevin/wrt/build_dir/host/libressl-2.9.2/crypto/.libs/libcrypto_la-cpuid-macosx-x86_64.o', needed by `handshake_table'.  Stop.
make[3]: *** [all-recursive] Error 1

A similar error & clues from
https://gitlab.com/ymorin/buildroot/commit/e783d60473944f8b39f1def45d8d6b483a062158

"
LibreSSL 2.9.1 now has a test that requires libtls.a, however, when building a
shared library only build, the --disable-static flag is passed to libressl,
which prevents the building of libtls.a.

With libtls.a not being built, the following error occurs:
libressl-2.9.1/tls/.libs/libtls.a', needed by 'handshake_table'.  Stop.

There are three options to fix this:
1) Stick with autotools, and provide a patch that removes building anything in
   the tests folder.
2) Pass --enable-static to LIBRESSL_CONF_OPTS
3) Change the package type to cmake, as a cmake build does not have this issue."

It appears we cannot change to cmake because cmake has a dependency on
an ssl library.

Take option 1 and do not build the tests.

Also take the opportunity to remove man page building as well.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
(cherry picked from commit 8d6d227bb653b7cce7092a5a9d55180c3e022848)