* ext/socket/extconf.rb: Solaris 11 has struct tcp_info.tcpi_ca_state,
but it is a dummy.
* ext/socket/option.c: Solaris 11 doesn't have u_intN_t.
* ext/socket/option.c: Solaris 11 needs inspect_tcpi_msec.
* ext/socket/raddrinfo.c: Solaris 11 has AF_PACKET but doesn't have
related macros.
merge revision(s) 50089: [Backport #11342]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@51518 b2dd03c8-39d4-4d8f-98ff-823fe69b080e