openssl: rename openssl 1.0.x to openssl10 and make openssl 1.1.x the default version

openssl: rename openssl 1.0.x to openssl10 and make openssl 1.1.x the default version

I believe the time has come to do this: openssl 1.0 upstream support stops at the end
of 2019, and we do not want a situation where a supported YP release contains an
unsupported version of a critical security component.

Openssl 1.0 can still be utilized by depending on 'openssl10' recipe.

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>