cyassl: version bump to 3.4.6

This patch introduces a new build error into coova-chilli, but
coova-chilli already fails to build even without it anyway. CyaSSL is
now called wolfSSL, and all the API's have been renamed, and
backward-compatibility headers added.

Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 46167