Use OPENSSL_NO_HEARTBEATS for better wpa_supplicant interoperability

Bug: https://bugs.launchpad.net/ubuntu/+source/wpasupplicant/+bug/969343/comments/70
Bug: http://rt.openssl.org/Ticket/Display.html?id=2825#txn-34312
Bug: http://code.google.com/p/android/issues/detail?id=34212
Bug: 6883259

(cherry-picked from 9b4b0620)

Change-Id: I440deb622b51fd38d575f32bf70e9f1ce990aa71