* test/openssl/test_pkey_ec.rb: Skip tests for "Oakley" curves as
  they are not suitable for ECDSA.
  [ruby-core:54881] [Bug #8384]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e