Fix compile failure due to incorrect detection of sslv2 in openssl

Arch: ALL
Build System: 3.2.0-4-686-pae #1 SMP Debian 3.2.46-1 i686 GNU/Linux (Debian Wheezy v7.0)

Trying to build curl fails with:

...
../lib/.libs/libcurl.so -lz -lrt
../lib/.libs/libcurl.so: undefined reference to `SSLv2_client_method'
collect2: error: ld returned 1 exit status
make[3]: *** [curl] Error 1
make[3]: Leaving directory `/opt/spksrc/cross/curl/work/curl-7.30.0/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/opt/spksrc/cross/curl/work/curl-7.30.0/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/spksrc/cross/curl/work/curl-7.30.0'
make: *** [compile_target] Error 2

Curl's configure is improperly identifying openssl (default spksrc package/settings) with sslv2 enabled. 
Added  --disable-HAVE_SSLV2_CLIENT_METHOD to override