ossl_x509attr.c: typed data

* ext/openssl/ossl_x509attr.c (ossl_x509attr_type): use typed data.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48809 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ossl_x509cert.c: typed data

* ext/openssl/ossl_x509cert.c (ossl_x509_type): use typed data.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48810 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ossl_x509crl.c: typed data

* ext/openssl/ossl_x509crl.c (ossl_x509crl_type): use typed data.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48811 b2dd03c8-39d4-4d8f-98ff-823fe69b080e