libyaml: add security patch for CVE-2014-9130

Fixes: assert failure when processing wrapped strings (CVE-2014-9130).
See https://bugzilla.redhat.com/show_bug.cgi?id=1169369



Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>