python-pycurl: update to 7.16.4 to match curl

diff --git a/packages/python/python-pycurl_7.14.0.bb b/packages/python/python-pycurl_7.16.4.bb
similarity index 100%
rename from packages/python/python-pycurl_7.14.0.bb
rename to packages/python/python-pycurl_7.16.4.bb