package/tor: fix openssl detection for static builds

package/tor: fix openssl detection for static builds

Fixes
http://autobuild.buildroot.net/results/8e6/8e639ab8912e7d884fd8e6dbb1ca8b49451dd766/

/home/test/autobuild/run/instance-1/output/host/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libcrypto.a(c_zlib.o):
In function `zlib_stateful_expand_block':
c_zlib.c:(.text+0x54): undefined reference to `inflate'
/home/test/autobuild/run/instance-1/output/host/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libcrypto.a(c_zlib.o):
In function `zlib_stateful_compress_block':
c_zlib.c:(.text+0xd4): undefined reference to `deflate'

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>